1 BỘ LAO ĐỘNG - THƯƠNG BINH XÃ HỘI TỔNG CỤC DẠY NGHỀ GIÁO TRÌNH Mô đun: Anh văn chuyên ngành NGHỀ QUẢN TRỊ MẠNG MÁY TÍNH TRÌNH ĐỘ: CAO ĐẲNG NGHỀ ( Ban hành kèm theo Quyết định số:120/QĐ-TCDN ngày 25 tháng 02 năm 2013 của Tổng cục trưởng Tổng cục dạy nghề) Hà Nội, năm 2013 2 TUYÊN BỐ BẢN QUYỀN: Tài liệu này thuộc loại sách giáo trình nên các nguồn thông tin có thể được phép dùng nguyên bản hoặc trích dùng cho các mục đích về đào tạo và tham khảo. Mọi mục đích khác mang tính lệch lạc hoặc sử dụng với mục đích kinh doanh thiếu lành mạnh sẽ bị nghiêm cấm. MÃ TÀI LIỆU: Mã số môn học: MH21 3 LỜI GIỚI THIỆU Introduction The aim of this lecture is to develop a basic knowledge of how English is used for communication in Information Technology. It is suitable for use in universities, colleges and technical schools with intermediate students who already know how to handle the common English sentence patterns but who want to improve and extend their language skills in the context of IT. Little or no previous knowledge of Information Technology is assumed, but if students work through the lecture carefully they will certainly learn a great deal about it since the material does embrace all the basic concepts of Information Technology. There are 5 units/ lessons covering a wide range of current IT topics using a variety of texts and visual material taken from textlectures, newspapers, popular computing magazines, Internet newsgroups, Webpages, manuals, and advertisements. The aim is to help students to acquire and develop the skills they will need in order to learn the subject of Information Technology. Emphasis is placed on developing reading skills; important lexical items are isolated for special attention and significant points of grammar are thoroughly treated and revised. The lecture also includes a comprehensive glossary of current IT terminology with Vietnamese translation, the answer key as well as many teaching notes. It is user-friendly to both teachers and students and its clear layout, using both photos and graphics, will make it a very popular choice for those wishing to acquire what are now regarded by many to be mandatory skills for employees in almost every part of the workforce. Having many years of experience of teaching Information technology in English and teaching English for Computing, the authors have devoted much time and effort to compile this lecture of English for Information Technology appropriate to the Vietnamese environment. Nevertheless, the lecture cannot escape from shortcomings that the authors would like to insist the tolerance from the users of the lecture and to thank them for their comments and remarks that will be valuable for the next publication. Finally, in helping this lecture come to fruition, the authors would like to thank Miss Vũ Thị Hương Trà and Miss La Thi Hong Thu, graduated students of the English Department of Hanoi University of Technology and Miss Do Thi Bich Thuan, the final year sudent (K52 SE) of Soict for the marvelous job she has made of desktop publishing a long and complex manuscript and for her enthusiasm and stoicism in the face of repeated massive revision. In a practical sense, they have been a author. Authors: Thac Binh Cuong. M.Sc 4 Lời giới thiệu Việc đọc các tài liệu và hướng dẫn bằng tiếng Anh trong lĩnh vực công nghệ thông tin là một nhu cầu cấp thiết, tiến tới việc hội nhập CNTT trong vùng và trên thế giới, đó là giảng và học các chuyên đề bằng tiếng Anh. Trước tình hình đó, Nhà Xuất Bản Bách Khoa Hà Nội cho biên soạn bài giảng này nhằm giúp , sinh viên phát triển những kiến thức cơ bản để giao tiếp bằng tiếng Anh trong ngành công nghệ thông tin. Bài giảng có thể dùng trong các trường đại học, cao đẳng, và dạy nghề cho , sinh viên đã biết làm chủ những mẫu câu tiếng Anh thông dụng nhưng muốn mở rộng và nâng cao các kỹ năng ngôn ngữ trong môi trường công nghệ thông tin. Sách cập nhật và bao gồm tất cả những khái niệm cơ bản trong ngành công nghệ thông tin nhằm giúp , sinh viên mới làm quen với chuyên ngành này tiếp thu những kiến thức hữu ích về môn học. Với 5 mô đun/ bài học bao gồm nhiều chủ đề về công nghệ thông tin, sử dụng các bài đọc và hình minh họa được trích từ sách, báo, các tạp chí chuyên ngành máy tính, Internet, trang Web, sách hướng dẫn và các mẩu tin quảng cáo nhằm giúp học viên thu nhận và phát triển những kỹ năng cần thiết để học môn Công nghệ Thông tin sau này. Bài giảng đặc biệt chú trọng vào việc phát triển kỹ năng đọc; những thuật ngữ và từ vựng quan trọng được tách ra thành một mục riêng để thu hút và phát triển vốn từ của học viên; trong mỗi bài có phần bài tập ngữ pháp giúp học viên ôn lại những điểm ngữ pháp cơ bản. Phần cuối bài giảng là bảng tra cứu các thuật ngữ chuyên ngành đã được dịch sang tiếng Việt, đáp án và một số gợi ý giảng dạy cần thiết cho giáo viên. Bài giảng dễ sử dụng cho cả giáo viên và nhờ cách trình bày rõ ràng, sử dụng nhiều hình ảnh và đồ họa. Đây là bài giảng hữu ích cho những người muốn có được những kỹ năng vốn được coi là bắt buộc để có thể làm việc trong bất cứ lĩnh vực nào của ngành CNTT. Với nhiều năm kinh nghiệm giảng dạy CNTT bằng tiếng Anh và tiếng Anh chuyên ngành CNTT, nhóm tác giả đã bỏ ra nhiều công sức, nỗ lực để biên soạn bài giảng phù hợp với môi trường giảng dạy ở Việt Nam. Tuy nhiên, những sai sót trong lúc biên soạn và trình bày là không thể tránh khỏi. Rất mong nhận được sự đóng góp của các đồng nghiệp và người học để bài giảng ngày càng hoàn thiện hơn, phục vụ cho đông đảo bạn đọc. Cuối cùng, để bài giảng này ra đời, nhóm tác giả xin cảm ơn Chị Vũ thị Hương Trà, Lã Thị Hồng Thu cử nhân Tiếng Anh kỹ thuật, khoa Tiếng Anh Khoa Học Kỹ Thuật và Công Nghệ trường Đại Học Bách Khoa Hà Nội đã nhiệt tình và có trách nhiệm trong việc chế bản rất hiệu quả cho cuốn sách này. Cảm ơn sinh viên Đỗ Thị Bích Thuận sinh viên năm cuối (K52) viện Công nghệ Thông Tin và Truyền Thông đã hiệu chỉnh các từ ngữ chuyên ngành. Với một ý nghĩa thực tế, các chị cũng là người đồng biên soạn cuốn sách này. Tác giả biên soạn: Xin chân thành cảm ơn ! 5 Hà Nội, ngày…..tháng…. năm… Tham gia biên soạn 1. Chủ biên Thạc Bình Cường 6 Contents INTRODUCTION .............................................................................................................................3 LỜI GIỚI THIỆU .............................................................................................................................4 MÔN HỌC/MÔ ĐUN ...................................................................................................................... 10 MODULE 1. COMPUTERS TODAY.............................................................................................. 23 Lesson 1. Computer applications ................................................................................................. 24 I. Match the pictures ............................................................................................................ 24 II. Language work: The passive ......................................................................................... 26 III. Reading ......................................................................................................................... 27 IV. Other application .......................................................................................................... 28 Lesson 2. Computer essentials ..................................................................................................... 30 I. Computer hardware ......................................................................................................... 30 II. What is a computer? ......................................................................................................... 30 III. Diferent type of computer? ............................................................................................... 30 IV. Language work? ............................................................................................................... 32 V. Benefits of laptop and tablet PCs? .................................................................................... 32 Lesson 3. Inside the system .............................................................................................................. 33 I. Worm-up .......................................................................................................................... 33 II. Reading ......................................................................................................................... 33 III. Language work: Relative clauses .................................................................................. 36 IV. Reading ......................................................................................................................... 37 V. VI. Vocabulary quiz................................................................................................................ 38 Your ideal computer system .......................................................................................... 39 Lesson 4. Buying a computer ....................................................................................................... 40 MODULE 2. INPUT/OUTPUT DEVICES ...................................................................................... 42 Lesson 1. Type, click and talk! ..................................................................................................... 43 I. Interacting with your computer ........................................................................................ 43 II. Speaking ....................................................................................................................... 44 III. About the keyboard....................................................................................................... 44 IV. Reading ......................................................................................................................... 45 V. Language work: Describing function ................................................................................ 46 Lesson 2. Capture your favorite images ....................................................................................... 48 I. Scanners: The eyes of your computer ............................................................................... 48 II. Facts and opinions......................................................................................................... 48 III. Language work: Making comparisons .......................................................................... 51 IV. Further reading............................................................................................................. 55 Lesson 3. Viewing the output ....................................................................................................... 57 I. Read and think ................................................................................................................. 57 II. Reading ......................................................................................................................... 57 III. Writing ......................................................................................................................... 58 IV. Language work: Instructions and advice....................................................................... 59 Lesson 4. Choosing a printer........................................................................................................ 60 I. Reading ............................................................................................................................ 60 7 II. Discourse cohesion ........................................................................................................ 62 III. Scan reading: Quiz ........................................................................................................ 62 IV. Language work: Revision of comparison....................................................................... 63 V. Describing your ideal printer ............................................................................................ 64 Lesson 5. I/O devices for the disabled .......................................................................................... 65 I. Adaptive technology ......................................................................................................... 65 II. Reading ......................................................................................................................... 66 III. Writing ......................................................................................................................... 68 IV. Language work: Compound nouns ............................................................................... 69 MODULE 3. STORAGE DEVICES ................................................................................................ 72 Lesson 1. Hard drives .................................................................................................................. 73 I. Before you read ................................................................................................................ 73 II. Reading ......................................................................................................................... 73 III. Work in group .............................................................................................................. 74 IV. Vocabulary.................................................................................................................... 75 V. Language work: Revision of prefixes ................................................................................ 76 Lesson 2. Magnetic storage .......................................................................................................... 77 I. Types of magnetic drive .................................................................................................... 77 II. Magnetic storage ........................................................................................................... 78 III. Language work: precautions ......................................................................................... 79 IV. Word building ............................................................................................................... 81 V. Explaining hard drive precautions.................................................................................... 81 Lesson 3. Flash memory............................................................................................................... 82 I. Flash-based gadgets .......................................................................................................... 82 II. Memory in a flash ............................................................................................................. 82 III. Find words or phrases in the text with the following meanings ..................................... 84 IV. Vocabulary revision ...................................................................................................... 86 MODULE 4. BASIC SOFTWARE .................................................................................................. 87 Lesson 1. Operating Systems ....................................................................................................... 88 I. Warm-up .............................................................................................................................. 88 II. Reading ......................................................................................................................... 89 III. Basic DOS commands ................................................................................................... 90 IV. Language work: Revision of the passive ........................................................................ 90 V. Quiz .................................................................................................................................. 91 Lesson 2. The graphical user interface ......................................................................................... 92 I. A user-friendly interface ................................................................................................... 92 II. Reading ......................................................................................................................... 93 III. Exercise work................................................................................................................ 94 IV. Language work: Short relative clauses .......................................................................... 95 V. Writing ............................................................................................................................. 96 Lesson 3. Spreadsheets................................................................................................................. 98 I. II. Looking at a spreadsheet .................................................................................................. 98 Reading ......................................................................................................................... 98 8 III. Vocabulary.................................................................................................................... 99 IV. Language work: Prepositions of place ......................................................................... 100 V. VI. Graphic representation ................................................................................................... 101 Extension .................................................................................................................... 101 Lesson 4. Databases ................................................................................................................... 103 I. Warm-up ........................................................................................................................ 103 II. Reading ....................................................................................................................... 103 III. Puzzle .......................................................................................................................... 104 IV. Language work ........................................................................................................... 105 V. Writing ........................................................................................................................... 107 MODULE 5. FACES OF THE INTERNET .................................................................................. 108 Lesson 1. The internet and email ............................................................................................... 108 Lesson 2. The web ...................................................................................................................... 114 I. A typical web page .......................................................................................................... 115 II. Language work: collocations 2 ........................................................................................ 116 III. Language work: the prefixes e- and cyber- ................................................................. 117 IV. What do you use the Web for? .................................................................................... 119 Lesson 3. Internet security ......................................................................................................... 120 I. On alert .......................................................................................................................... 120 II. Security and privacy on the Internet............................................................................... 121 III. The history of hacking ........................................................................................................ 122 IV. Language work: the past simple ........................................................................................ 123 V. Internet issues .......................................................................................................................... 125 MODULE 6. CREATIVE SOFTWARE ............................................................................................... 127 Lesson 1. Multimedia .......................................................................................................................... 128 I. Multimedia is here! ................................................................................................................. 128 II. Reading................................................................................................................................. 128 III. Language work: If – clauses ............................................................................................... 130 IV. Multimedia on the Web ...................................................................................................... 132 Lesson 2. Web design .......................................................................................................................... 134 I. A typical home page ................................................................................................................ 134 II. Web page design .................................................................................................................. 134 III. Language work: modal verbs ............................................................................................. 136 IV. Blogs...................................................................................................................................... 138 MODULE 7. PROGRAMING / JOBS IN ICT ..................................................................................... 139 Lesson 1. Program design ................................................................................................................... 140 I. Warm-up .................................................................................................................................. 140 II. Reading................................................................................................................................. 140 III. Language work: Infinitive constructions .......................................................................... 141 Lesson 2. Languages............................................................................................................................ 160 I. Warm-up .................................................................................................................................. 160 II. Language work: Would, Revision of time clauses ............................................................ 160 III. Speaking ............................................................................................................................... 162 9 IV. A short description of BASIC............................................................................................. 162 Lesson 3. Jobs in ICT .......................................................................................................................... 164 I. IT professionals ....................................................................................................................... 164 II. Job advertisements .............................................................................................................. 164 III. A letter of application.......................................................................................................... 165 IV. Language work: the present perfect .................................................................................. 166 MODULE 8. COMPUTERS TOMORROW ........................................................................................ 168 Lesson 1. Electronic communications................................................................................................ 169 I. Before you read........................................................................................................................ 169 II. Reading................................................................................................................................. 169 III. Language work: Making predictions ................................................................................ 172 Lesson 2. Internet issues ..................................................................................................................... 175 I. Warm-up .................................................................................................................................. 175 II. Reading................................................................................................................................. 175 III. Hackers! ............................................................................................................................... 178 IV. Language work: The past simple (revision) ...................................................................... 179 Lesson 3. Networks.............................................................................................................................. 180 I. Small networks ........................................................................................................................ 180 II. Networking FAQs .................................................................................................................... 180 III. Language work: phrasal verbs........................................................................................... 182 Lesson 4. New technologies ................................................................................................................. 184 I. Future trends ........................................................................................................................... 184 II. Language work: future forms ......................................................................................... 188 III. Making predictions ............................................................................................................. 190 Tài liệu tham khảo........................................................................................................................... 190 10 MÔ ĐUN Anh văn chuyên ngành Mã mô đun: MH21 Thời gian của môn học: 75 giờ; (Lý thuyết: 30 giờ; Thực hành: 45 giờ) Vị trí, ý nghĩa, vai trò môn học/mô đun: - Vị trí: Môn học được bố trí sau khi học xong các môn học chung, trước các môn học, mô đun đào tạo chuyên môn nghề. - Tính chất: Là môn học cơ sở chuyên ngành. Mục tiêu của mô đun: - Phát triển những kỹ năng như: đọc hiểu, dịch các tài liệu tiếng Anh chuyên ngành Công nghệ thông tin. - Đọc hiểu các thông báo của hệ thống và các phần mềm ứng dụng khi khai thác và cài đặt. - Đọc hiểu các tài liệu đọc thêm bằng tiếng Anh và tóm tắt nội dung chính của tài liệu. - Nắm được vốn từ vựng và ngữ pháp cơ bản của tiếng Anh chuyên ngành CNTT. - Bố trí làm việc khoa học đảm bảo an toàn cho người và phương tiện học tập. III. NỘI DUNG MÔN HỌC: 1. Nội dung tổng quát và phân phối thời gian : Thời gian Số TT I Tên chương, mục Computers today Tổng số Lý thuyết Thực hành, Bài tập 10 5 5 10 5 5 Computers applications Configuration Inside the system Bits and bytes Buying a computer II Input/output devices Type and click! Capture your favorite image Viewing the output Choosing a printer Kiểm tra (LT hoặcTH) 11 III Storage devices 10 5 4 1 15 4 11 10 4 5 10 4 6 10 3 6 1 75 30 42 3 Floppies Hard drives Optical breakthrough IV Basic software Operating systems The graphical user interface A walk through Speadsheets Databases Face of the Internet V Creative software 1 Graphics and design Desktop publishing Multimedia VI Programming Program design Languages Jobs in computing VII Computers tomorrow Electronic communications Internet issues LANs and WANs New technologies Cộng * Ghi chú: Thời gian kiểm tra lý thuyết được tính vào giờ lý thuyết, kiểm tra thực hành được tính vào giờ thực hành. 12 2. Nội dung chi tiết: Chương 1: Computer today Mục tiêu: - Liệt kê các từ vựng để mô tả về cấu trúc máy tính với một máy PC cụ thể với cấu hình phổ biến trên thị trường. - Mô tả được đoạn văn để diễn tả các thông tin trong máy tính. - Trả lời chính xác các bảng liệt kê cấu hình máy tính bằng các bài kiểm tra dạng trắc nghiệm. - Diễn tả cho khách hàng hiểu được cấu hình máy khi khách mua máy tính. - Thực hiện các thao tác an toàn với máy tính. 1. Computers applications Thời gian: 2 giờ 1.1. Vocabulary 1.2. Match the pictures: computers 1.3. What can computers do? 2. Configuration Thời gian: 2 giờ 2.1. Vocabulary 2.2. What is a computer? 2.3. Minus and Micros 3. Inside the system Thời gian: 2 giờ 3.1. Vocabulary 3.2. What’s inside a microcomputer? 3.3. Main memory: RAM and ROM 3.4. Your ideal computer system 4. Bits and bytes Thời gian: 2 giờ 4.1. Vocabulary 4.2. Units of memory 4.3. Bits for pictures 5. Buying a computer Thời gian: 2 giờ 5.1. Vocabulary 5.2. Role play Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 1 13 Mục/Tiểu mục/.... 1. Computers applications Thời gian (giờ) T.Số 2 Hình thức LT TH/BT KT* giảng dạy 1 1 1.1. Vocabulary 0.25 0.25 1.2. Match the pictures: computers 0.25 0.25 0.5 0.5 1 1 2.1. Vocabulary 0.25 0.25 2.2. What is a computer? 0.25 0.25 2.3. Minus and Micros 0.5 0.5 1 1 3.1. Vocabulary 0.25 0.25 3.2. What’s inside a microcomputer? 0.25 0.25 0.25 0.25 0.25 0.25 1 1 4.1. Vocabulary 0.25 0.25 4.2. Units of memory 0.25 0.25 4.3. Bits for pictures 0.5 0.5 1 1 5.1. Vocabulary 0.5 0.5 5.2. Role play 0.5 0.5 5 5 1.3. What can computers do? 2. Configuration 3. Inside the system 2 2 3.3. Main memory: RAM and ROM 3.4. Your ideal computer system 4. Bits and bytes 5. Buying a computer 2 2 * Kiểm tra Tổng cộng 10 14 Chương 2: Input/Output devices Mục tiêu: - Liệt kê các từ vựng để mô tả vế các thiết bị vào ra cơ sở của máy PC. - Trả lời chính xác các bảng liệt kê cấu hình và công dụng của các thiết bị vào ra thông qua các bài kiểm tra trên giấy. - Sử dụng đúng cú pháp trong việc mô tả các thiết bị vào ra. - Thực hiện các thao tác an toàn với máy tính. Thời gian: 2 giờ 1. Type and click! -Keyboarb 1.1. Vocabulary 1.2. About the keyboard Thời gian: 3 giờ 2. Image 2.1. Vocabulary 2.2. Scanners: The eyes of computer Thời gian: 2 giờ 3. Monitor 3.1. Vocabulary 3.2. Monitors Thời gian: 3 giờ 4. Printer 4.1. Vocabulary 4.2. Types of Printers Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 2 Mục/Tiểu mục/.... 1. Type and click! -Keyboarb Thời gian (giờ) T.Số 1 1 1.1. Vocabulary 0.5 0.5 LT+TH 1.2. About the keyboard 0.5 0.5 LT+TH 1.5 1.5 0.5 0.5 LT+TH 1 1 LT+TH 1 1 0.5 0.5 2. Image 2 Hình thức LT TH/BT KT* giảng dạy 3 2.1. Vocabulary 2.2. Scanners: The eyes of computer 3. Monitor 3.1. Vocabulary 2 LT+TH 15 3.2. Monitors 4. Printer 3 4.1. Vocabulary 4.2. Types of Printers 0.5 0.5 LT+TH 1.5 1.5 0.5 0.5 LT+TH 1 1 LT+TH 5 5 * Kiểm tra Tổng cộng Chương 3: 10 Storage devices Mục tiêu: - Liệt kê các từ vựng để mô tả vế các thiết bị lưu trữ trong máy tính. - Mô tả được đoạn văn để diễn tả các thiết bị lưu trữ. - Trả lời chính xác các bảng liệt kê cấu tạo và công dụng của các thiết bị lưu trữ thông qua các bài kiểm tra trên giấy. - Sử dụng đúng cú pháp trong việc mô tả các thiết bị lưu trữ. - Thực hiện các thao tác an toàn với máy tính. Thời gian: 3 giờ 1. Floppies 2.1. Vocabulary 2.2.Types of disks 2.3. Technical details Thời gian: 4 giờ 2. Hard drives 2.1. Vocabulary 2.2. Hard disks Thời gian: 3 giờ 3. Optical breakthrough 3.1. Vocabulary 3.2. Optical disk and drives Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 3 Mục/Tiểu mục/.... 1. Floppies 2.1. Vocabulary Thời gian (giờ) T.Số 3 Hình thức LT TH/BT KT* giảng dạy 1.5 1.5 0.5 0.5 LT+TH 16 2.2.Types of disks 0.5 0.5 LT+TH 2.3. Technical details 0.5 0.5 LT+TH 2 1 2.1. Vocabulary 1 0.5 LT+TH 2.2. Hard disks 1 0.5 LT+TH 1.5 1.5 0.5 0.5 LT+TH 1 1 LT+TH 2. Hard drives 3 3. Optical breakthrough 3 3.1. Vocabulary 3.2. Optical disk and drives * Kiểm tra 1 Tổng cộng 10 Chương 4: 1 5 4 1 Basic software Mục tiêu: - Liệt kê các từ vựng để mô tả vế các phần mềm, các menu, thanh công cụ, các cửa sổ, các giao diện người dùng. - Mô tả được đoạn văn để diễn tả các thao tác đối với một phần mềm. - Trả lời chính xác các bảng liệt kê các thao tác sử dụng phần mềm, các giao diện chuẩn thông qua các bài kiểm tra trên giấy. - Sử dụng đúng cú pháp trong việc mô tả các thao tác phần mềm. - Thực hiện các thao tác an toàn với máy tính. 1. Operating system Thời gian: 3 giờ 1.1. Vocabulary 1.2. MS-DOS, Windows... 2. The graphiccal user interface Thời gian: 2 giờ 2.1. Vocabulary 2.2. GUIs 3. A walk through word processing Thời gian: 3 giờ 3.1. Vocabulary 3.2. Word – processing facilities 4. Speadsheets 4.1. Vocabulary 4.2. Speadsheets Thời gian: 2 giờ 17 Thời gian: 3 giờ 5. Databases 5.1. Vocabulary 5.2. Basic features of database programs Thời gian: 2 giờ 6. Face of the Internet 6.1. Vocabulary 6.2. Internet software Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 4 Mục/Tiểu mục/.... Thời gian (giờ) Hình thức giảng dạy T.Số LT 3 1 2 1.1. Vocabulary 0.5 1 LT+TH 1.2. MS-DOS, Windows... 0.5 1 LT+TH 0.5 1.5 2.1. Vocabulary 0.25 0.5 LT+TH 2.2. GUIs 0.25 1 LT+TH 0.5 2.5 0.25 1 LT+TH 0.25 1.5 LT+TH 0.5 1.5 4.1. Vocabulary 0.25 0.5 LT+TH 4.2. Speadsheets 0.25 1 LT+TH 1 2 5.1. Vocabulary 0.5 1 LT+TH 5.2. Basic features of database programs 0.5 1 LT+TH 0.5 1.5 6.1. Vocabulary 0.25 0.5 LT+TH 6.2. Internet software 0.25 1 LT+TH 1. Operating system 2. The graphiccal user interface 3. A walk through word processing 2 3 3.1. Vocabulary TH/BT KT* 3.2. Word – processing facilities 4. Speadsheets 5. Databases 6. Face of the Internet * Kiểm tra 2 3 2 18 Tổng cộng Chương 5: 15 4 11 Creative software Mục tiêu: - Liệt kê các từ vựng để mô tả vế các phần mềm, các kỹ thuật thiết kế phần mềm, các kỹ thuật chế bản và xuất bản phần mềm. - Trả lời được các bảng liệt kê các thao tác thiết kế phần mềm, các giao diện chuẩn thông qua các bài kiểm tra trên giấy. - Sử dụng đúng cú pháp trong việc mô tả các công nghệ phần mềm. - Thực hiện các thao tác an toàn với máy tính. Thời gian: 4 giờ 1. Graphics and design 1.1. Vocabulary 1.2. Computer graphics Thời gian: 3 giờ 2. Desktop publishing 2.1. Vocabulary 2.2. Desktop publishing Thời gian: 3 giờ 3. Multimedia 3.1. Vocabulary 3.2. Multimedia magic Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 5 Mục/Tiểu mục/.... 1. Graphics and design Thời gian (giờ) T.Số 3 Hình thức LT TH/BT KT* giảng dạy 1.5 1.5 0.5 0.5 LT+TH 1 1 LT+TH 1.5 1.5 0.5 0.5 LT+TH 1 1 LT+TH 1 2 3.1. Vocabulary 0.5 1 LT+TH 3.2. Multimedia magic 0.5 1 LT+TH 1.1. Vocabulary 1.2. Computer graphics 2. Desktop publishing 3 2.1. Vocabulary 2.2. Desktop publishing 3. Multimedia 3 19 * Kiểm tra 1 Tổng cộng 10 Chương 6: 1 4 5 1 Programming Mục tiêu: - Liệt kê các từ vựng để mô tả vế các ngôn ngữ lập trình, các kỹ thuật lập trình, các kỹ thuật về đa phương tiện. - Thao tác, sử dụng ngôn ngữ lập trình, các cách sử dụng công cụ đa phương tiện thông qua các bài kiểm tra trên giấy. - Thực hiện các thao tác an toàn với máy tính. Thời gian: 2 giờ 1. Program design 1.1. Vocabulary 1.2. Program design Thời gian: 4 giờ 2. Languages 2.1. Vocabulary 2.2. Programming languages Thời gian: 4 giờ 3. Jobs in computing 3.1. Vocabulary 3.2. Jobs in computing Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 6 Mục/Tiểu mục/.... 1. Program design Thời gian (giờ) T.Số 1 1 1.1. Vocabulary 0.5 0.5 LT+TH 1.2. Program design 0.5 0.5 LT+TH 1.5 2.5 0.5 1 LT+TH 1 1.5 LT+TH 1.5 2.5 0.5 1 2. Languages 2 Hình thức LT TH/BT KT* giảng dạy 4 2.1. Vocabulary 2.2. Programming languages 3. Jobs in computing 3.1. Vocabulary 4 LT+TH 20 3.2. Jobs in computing 1 1.5 4 6 LT+TH * Kiểm tra Tổng cộng Chương 7: 10 Computers tomorrow Mục tiêu: - Liệt kê các từ vựng để mô tả vế các các công nghệ của máy tính trong tương lai, các vấn đề liên quan đến máy tính có khả năng ứng dụng trong tương lai, các công nghệ mới. - Mô tả được đoạn văn để diễn tả các nhiệm vụ để mô tả máy tính theo các công nghệ mới. - Trả lời được các bảng kiểm tra về máy tính trong tương lai thông qua các bài kiểm tra trên giấy. - Thực hiện các thao tác an toàn với máy tính. Thời gian: 2 giờ 1. Electronic communications 1.1. Vocabulary 1.2. Channels of communication Thời gian: 3 giờ 2. Internet issues 2.1. Vocabulary 2.2. Security and privacy on the Internet Thời gian: 3 giờ 3. LANs and WANs 3.1. Vocabulary 3.2.Network configurations Thời gian: 2 giờ 4. New technologies 4.1. Vocabulary 4.2. New technology in the future Nội dung chi tiết, phân bổ thời gian và hình thức giảng dạy của Chương 7 Mục/Tiểu mục/.... 1. Electronic communications Thời gian (giờ) T.Số 2 Hình thức LT TH/BT KT* giảng dạy 0.5 1.5 1.1. Vocabulary 0.25 0.5 LT+TH 1.2. Channels of communication 0.25 1 LT+TH 21 2. Internet issues 1 2 2.1. Vocabulary 0.5 0.5 LT+TH 2.2. Security and privacy on the Internet 0.5 1.5 LT+TH 1 1 3.1. Vocabulary 0.5 0.5 LT+TH 3.2.Network configurations 0.5 0.5 LT+TH 0.5 1.5 4.1. Vocabulary 0.25 0.5 LT+TH 4.2. New technology in the future 0.25 1 LT+TH 3. LANs and WANs 4. New technologies 3 2 2 * Kiểm tra 1 Tổng cộng 10 1 3 6 1 IV. ĐIỀU KIỆN THỰC HIỆN CHƯƠNG TRÌNH: - Dụng cụ và trang thiết bị: + Slide, băng từ, đĩa CDROM, DVD... + Máy chiếu đa phương tiện + Máy cassette - Học liệu: + Tài liệu hướng dẫn môn học Anh văn. + Tài liệu hướng dẫn bài học và bài tập thực hành môn học Anh văn. + Giáo trình Môn học Anh văn. - Nguồn lực khác: Phòng LAB bộ môn Anh văn đủ điều kiện nghe, nói đọc, viết và thực hành. V. PHƯƠNG PHÁP VÀ NỘI DUNG ĐÁNH GIÁ: - Về kiến thức: Được đánh giá qua bài viết, kiểm tra vấn đáp hoặc trắc nghiệm, tự luận, thực hành đạt các yêu cầu: + Nói và viết về ứng dụng máy tính trong cuộc sống hàng ngày. + Trình bày được cấu trúc của máy tính và các chức năng của nó để có thể mua máy tính tại của hàng kinh doanh máy tính. + Sử dụng các từ viết tắt khi nói về máy tính. + Xây dụng các từ mới bằng cách sử dụng tiếp đầu ngữ, đuôi từ và ghép từ. - Về kỹ năng:Đánh giá kỹ năng thực hành của trong bài thực hành Anh văn đạt được các yêu cầu sau: + Phân biệt các thiết bị ngoại vi (vào ra): Bàn phím, màn hình, máy in, ổ đĩa, và các thành phần bên trong máy tính. + Nói về mạng máy tính và ứng dụng của INTERNET 22 + Đọc hiểu được một số tài liệu chuyên ngành CNTT + Diễn tả cho khách hàng hiểu được cấu hình máy khi khách mua máy tính - Về thái độ: Cẩn thận, tự giác,chính xác. VI. HƯỚNG DẪN CHƯƠNG TRÌNH: 1. Phạm vi áp dụng chương trình: Chương trình môn học được sử dụng để giảng dạy cho trình độ cao đẳng nghề Quản trị mạng máy tính. 2. Hướng dẫn một số điểm chính về phương pháp giảng dạy môn học Sử dụng phương pháp phát vấn Phân nhóm cho các sinh viên trao đổi với nhau, trình bày theo nhóm 3. Những trọng tâm chương trình cần chú ý Giáo viên trước khi giảng dạy cần phải căn cứ vào nội dung của từng bài học chuẩn bị đầy đủ các điều kiện thực hiện bài học để đảm bảo chất lượng giảng dạy. 4. Tài liệu cần tham khảo: [1]. Thạc Bình Cường (chủ biên), Tài liệu hướng dẫn môn học Anh văn chuyên ngành, Tiếng Anh chuyên ngành CNTT (English for IT & Computer users), Nhà xuất bản Khoa học và kỹ thuật, 2007 YÊU CẦU VỀ ĐÁNH GIÁ HOÀN THÀNH MÔN HỌC/MÔ ĐUN 1. . Kiểm tra đánh giá trước khi thực hiện mô đun: - Kiến thức: - Kỹ năng: 2. Kiểm tra đánh giá trong khi thực hiện mô đun: Giáo viên hướng dẫn quan sát trong quá trình hướng dẫn thường xuyên về công tác chuẩn bị, thao tác cơ bản, bố trí nơi làm việc... Ghi sổ theo dõi để kết hợp đánh giá kết quả thực hiện môđun về kiến thức, kỹ năng, thái độ. 3. Kiểm tra sau khi kết thúc mô đun: Căn cứ vào mục tiêu môđun để đánh giá kết quả qua bài kiểm tra viết, kiểm tra vấn đáp, hoặc trắc nghiệm đạt các yêu cầu sau: 3.1. Về kiến thức: Được đánh giá qua bài kiểm tra viết, trắc nghiệm đạt được các yêu cầu sau: Trình bày các thuật ngữ chuyên ngành. Liệt kê được chức năng của anh văn chuyên ngành. Trình bày được các khái niệm về anh văn chuyên ngành. Trình bày được anh văn chuyên ngành Công nghệ thông tin 3.2 Về kỹ năng: Đánh giá kỹ năng thực hành của sinh viên trong bài thực hành anh văn chuyên ngành Khả năng tâm sự, diễn đạt, kiên quyết khách quan Sử dụng anh văn chuyên ngành thành thạo 3.3Về thái độ: - Chấp hành nội quy thực tập; - Tổ chức nơi làm việc hợp lý, khoa học; - Ý thức kiên trì, nhẫn nại, khéo léo; 23 - Tinh thần hợp tác làm việc theo tổ, nhóm. MODULE 1. COMPUTERS TODAY Learning objectives In this lesson, you will learn how to: Talk and write about computer applications in everyday life Recognize the basic components of a computer system and understand their functions Understand the structure of different CPUs (central processing units) Understand the units of memory (bits, bytes, KB, MB, GB) Build up new words by using prefixes and suffixes Buy a computer from a shop Use synonyms, acronyms, and abbreviations when talking about computers 24 Lesson 1. Computer applications I. Match the pictures A. Computers have many applications in a great variety of fields. Look at these photographs of different situations and match them with texts 1 to 4 below. A B C D 1) Airline pilots use computers to help them control the plane. For example, monitors display data about fuel consumption, and weather conditions. In airport control towers, computers are used to manage radar systems, and regulate air traffic. 2) Computers can help students perform mathematical operations and solve difficult questions. They can be used to teach courses such as computer-aided design, language learning, programming, mathematics, etc. 3) Computer is used with laser and barcode technology to scan the price of each item and present total at a supermarket. 25 4) Banks use computers to look after their customers’ money. They also control the automatic cash dispensers which, by the use of a personal coded card, dispense money to clients. A. Match these titles with the pictures Using an automatic cash dispenser In education, computers can make all the difference Scanning the price of each item and present total at a supermarket Controlling the plane B. Match the places in column A with the computer uses in column B A B Banks Provide information and entertainment Factories Look after, patient records and medicines Homes Calculate the bill Hospitals Control machines Shops Control our money Now use the above words and phrases to fill in the gaps in this paragraph about computer uses. Computers are now part of our everyday life. In shops, they …… . In factories, they ……….. In ……, they look after, patient records and medicines. When we have bank account, a computer ……….. . In our homes computers……… C. Look at text one again and discuss these questions How are/were computers used in your school? What other areas of study would benefit from the introduction of computers? Example: In my school, computers are used to speed up the process of looking for references in the library. II. Language work: The passive 26 Passives are very common in technical writing where we are more interested in facts, processes, and events than in people. We form the passive by using the appropriate tenses of the verb ‘to be’ followed by the past participle of the verb we are using. Examples: Active 1) We sell computers. (simple present) 2) Babbage invented ‘The Analytical Engine’. (simple past) Passive 1) Computers are sold. (simple present) 2) ‘The Analytical Engine’ was invented in 1830. (simple past) Facts and processes When we write or talk about facts or processes that occur regularly, we use the present passive. Examples: 1) Data is transferred from the internal memory to the arithmeticlogical unit along channels known as buses. 2) The other users are automatically denied access to that record. 3) Distributed systems are built using networked computers. A. Read the text below, which describes the insurance company’s procedure for dealing with PC-users’ problems. Fill in the gaps using the correct form of the verb in brackets. All calls 1………………. (register) by the Help Desk staff. Each call 2 ………………. (evaluate) and then 3………………. (allocate) to the relevant support group. If a visit 4………………. (require), the user 5………………. (contact) by telephone, and an appointment 6 ………………. (arrange). Most calls 7………………. (deal with) within one working day. In the event of a major problem requiring the removal of a user’s PC, a replacement can usually 8 ………………. (supply). B. Fill in the gaps in the following sentences using the appropriate form of the verb in brackets 1) The part of the processor which controls data transfers between the various input and output devices ………………. (call) the control unit. 2) An operating system ………………. (store) on disk. 27 3) Instructions written in a high-level language ………………. (transform) into machine code. 4) In the star configuration, all processing and control functions ………………. (perform) by the central computer. 5) When a document arrives in the mail room, the envelope ………………. (open) by a machine. Events When we write or talk about past events, we use the past passive. Let us look at some examples. Examples: 1) COBOL was first introduced in 1959. 2) Microsoft was founded on the basis of the development of MS/DOS. 3) The organization was created to promote the use of computers in education. C. Fill in the gaps in the following sentences using the appropriate form of the verb in brackets. 1) Microsoft ………………. (found) by Bill Gates. 2) C language ………………. (develop) in the 1970s. 3) In the 1980s, at least 100,000 LANs ………………. (set up) in laboratories and offices around the world. 4) The first digital computer ………………. (build) by the University of Pennsylvania in 1946. 5) IBM’s decision not to continue manufacturing mainframes ………………. (reverse) the year after it ………………. (take). III. Reading A. Write a list of as many uses of the computer, or computer applications, as you can think of. B. Now read the text below and underline any applications that are not in your list What can computers do? Computers and microchips have become part of our everyday lives: we visit shops and offices which have been designed with the help of computers, we read magazines which have been produced on computer, and we pay bills prepared by computers. What makes your computer such a miraculous device? Each time you turn it on, with appropriate hardware and software, it is capable of doing anything you ask. It is a calculating machine that speeds up financial calculations. It is an 28 electronic filing cabinet which manages large collections of data such as customers’ lists, accounts, or inventories. It is a magical typewriter that allows you to type and print any kind of document – letters, memos, or legal documents. It is a personal communicator that enables you to interact with other computers and with people around the world. If you like gadgets and electronic entertainment, you can even use your PC to relax with computer games. IV. Other application A. In small groups, choose one of the areas in the diagram below and discuss what computers can do in this area. Formula 1 cars Factories and industrial processes Entertainment Hospitals and medical research Useful words Formula 1: racing car, car body, design, mechanical parts, electronic components, engine speed Entertainment: game, music, animated image, multimedia, encyclopedia Factories: machinery, robot, production line, computer-aided manufacturing software Hospitals: patients, medical personnel, database program, records, scanner, diagnose, disease, robot, surgery Useful constructions Computers are used to … A PC can also be used for … Computers can help … make … control … store … keep … provide … manage … give … perform … measure … test … provide access to … 29 B. Now write a short paragraph summarizing your discussion. Then ask one person from your group to give a summary of the group’s ideas to the rest of the class. Examples In business, computers are used for financial planning, accounting, and specific calculations. In the office, computers are used to write letters and keep records of clients, suppliers, and employees. Lesson 2. Computer essentials I. Computer hardware A. In pairs, discuss these questions 1) Have you got a computer at home, school or work? What kind is it? 2) How often do you use it? What do you use it for? 3) What are the main components and features of your computer system? B. In pairs, label the elements of this computer system II. What is a computer? A. Read the text What is a computer? A computer is an electronic hardware sections: the central machine which can accept data in a processing unit (CPU), main memory certain form, process the data, and and peripherals. Perhaps the most give the results of the processing in a influential components is the central specified format as information. processing unit. Its function is to First, data is fed into the execute program instructions and computer’s memory. Then, when the coordinate the activities of all the program is run, the computer performs other units. In a way, it is the “brain” a set of instructions and processes the of the computer. The main memory (a data. Finally, we can see the results collection of RAM chips) holds the (the output) on the screen or in printed instructions and data which are being form. processed by the CPU. Peripherals are A computer system consists of two parts: hardware Hardware is any and software. electronic or the physical units attached to the computer. They include storage devices and input/output devices. mechanical part you can see or touch. Storage devices (hard drives, DVD Software is a set of instructions, called drives or flash drives) provide a a program, which tells the computer permanent storage of both data and what to do. There are three basic programs. Disk drives are used to read and write data on disks. Input devices a modem, a digital camera, a scanner, enable data to go into the computer’s etc. memory. The most common input between the computer and the devices. devices are the mouse and the Modem desktop PCs have USB ports keyboard. Output devices enable us to and memory card readers on the front extract the finished product from the panel. They allow communication system. For example, the computer shows the output on the monitor or prints the results onto paper by means of a printer. A USB On the rear panel of the computer A USB port connector there are several ports into which we can plug a wide range of peripherals – B. Match these words from the text (1-9) which the correct meanings (a-i) 1. Software a. The brain of the computer 2. Peripherals b. Physical parts that make up a computer 3. Main memory system 4. Hard drive (also known as c. Programs which can be used on a hard disk) particular computer system 5. Hardware d. The information which is presented to the 6. Input computer 7. Ports e. Results produced by a computer 8. Output f. Input devices attached to the CPU 9. Central processing unit g. Section that holds program and data while they are executed or processed h. Magnetic device used to store information i. Sockets into which an external device may be connected III. Different type of computer A. Label the pictures (a-e) with words from the box Laptop Desktop PC PDA Mainframe Tablet PC a……………… b…………… c…………. d………….. e…………. B. Decide whether these sentences are true of false. Correct the false ones. 1) A mainframe computer is less powerful than a PC 2) A mainframe is used by large organizations that need to process enormous amounts of data. 3) The most suitable computers for home are desktop PCs 4) A laptop is not portable 5) Laptops are not as powerful as desktop PCs 6) Using a stylus, you can write directly onto the screen of a tablet PC 7) A Personal Digital Assistant is small enough to fit into a palm of your hand. 8) A PDA does not allow you to surf the Web IV. Language work A. Look at the HELP box and then use suitable classifying expressions to complete these sentences 1. A computer……….….hardware HELP box and software Classifying 2. Peripherals…………….three Classifying means putting things into types: input, output and storage groups or classes. We can classify types of computers, parts of a PC, etc. Some devices processing typical expressions for classifying are …are classifying into program………….. software types/categories which lets the user create and 3. A word …are classified by… edit text 4. ………………….of architecture: X network peer-to-peer, …can be divided into X types/categories where all computers have the Digital computers can be divided into same capabilities, and client- five main types: mainframes, desktop server (e.g. the Internet), where servers store and distribute data, and clients access this data. PCs, laptops, tablet PCs and handheld PDAs …include(s)… …consist(s) of… The basic configuration of a mainframe consists of a central system which processes immense amounts of data very quickly There are X types/classes of… X is a type of… A tablet PC is a type of notebook computer V. Benefits of laptops and tablet PCs Your school is considering buying tablet PCs to use in the classroom. Write an email to your teacher explaining the benefits for the students and the school. Lesson 3. Inside the system I. Worm-up A. Read the advertisement and translate the technical specifications into your own language. Notebook Apple Macbook MC374ZP/A: CPU Intel Core 2 Duo P8600 (2.4Ghz/ Mb), 4GB RAM, 250GB HDD, DVDRW Super drive, 13.3" Monitor, camera isight, card reader, Lan Gigabit wifi 802.11abg,bluetooth, hệ điều hành Mac OS B. Try to answer these questions. (If necessary look at the Glossary) 1) What is the main function of a microprocessor? 2) What unit of frequency is used to measure processor speed? 3) What does ‘RAM’ stand for? II. Reading A. Read the text below and then sentences 1 to 8 that follow. Decide if the sentences are true (T) or false (F), and rewrite the false ones to make them true. What’s inside a microcomputer? The nerve a executes program instructions and central supervises the computer’s overall processing unit or CPU. This unit is operation. The unit consists of three built into a single microprocessor chip main parts: microcomputer is centre the of – an integrated circuit – which i. The control unit, which The programs and data which examines the instructions in pass through the central processor the must user’s program, be loaded into the main interprets each instruction memory (also called the internal and causes the circuits and memory) in order to be processed. the rest of the components – disk drives, monitor, etc. – to be activated to execute the functions specified; ii. The arithmetic logic unit (ALU), which mathematical performs calculations (+, –, etc.) and logical Thus, when the user runs an operations (and, or, etc); iii. The registers, which are high-speed units of memory used to store and control information. One of these registers is the program counter (PC) which keeps track of the next instruction to be performed in the main memory. Another is the instruction register (IR) which holds the instruction that is currently being application, the microprocessor looks for it on secondary storage devices (disks) and transfers a copy of the application into the RAM area. RAM (random access memory) is temporary, i.e. its information is lost when the computer is turned off. However, the ROM section (read only memory) is permanent and contains instructions needed by the processor. Most of today’s computers have internal expansion slots that allow users to install adapters or expansion executed. One area microprocessors differ where is in the amount of data – the number of bits – they can work with at a time. There are 8, 16, 32, and 64-bit processors. The computer’s internal architecture is evolving so quickly that the new 64bit processors are able to address 4 billion times more information than a 32-bit system (see Fig.1). boards. Popular adapters include highresolution graphics boards, memory expansion boards, and internal modems. The power and performance of a computer is partly determined by the speed of its microprocessor. A clock provides pulses at fixed intervals to measure and synchronize circuits and units. The clock speed is measured in MHz (megahertz) and refers to the is likely to provide a very fast frequency at which pulses are emitted. processing rate and will enable the For example, a CPU running at 500 computer MHz (500 million cycles per second) demanding applications. to handle the most The new generation Other popular of processors platforms are: Figure 1 shows the Intel’s Pentium 600 Apple, IBM and MHz Alpha Motorola’s microprocessor from Digital, with a 64-bit Figure 1 Sun’s RISC implementation (Reduced Instruction Set PowerPC Computing) SuperSPARC Silicon Graphics/Mips architecture, R10000 providing lightning- R5000. and fast performance. 1) The CPU directs and coordinates the activities taking place within the computer system. 2) The arithmetic logic unit performs calculations on the data. 3) 32-bit processors can handle more information than 64-bit processors. 4) A chip is an electronic device composed of silicon elements containing a set of integrated circuits. 5) RAM, ROM, and secondary storage are the components of the main memory. 6) Information cannot be processed by the microprocessor if it is not loaded into the main memory. 7) ‘Permanent’ storage of information is provided by RAM (random access memory). 8) The speed of the microprocessor is measured in megahertz. One MHz is equivalent to one million cycles per second. B. Contextual reference. What do the words in bold and italics print refer to? 1) …which executes program instructions and supervises … 2) …the instruction that is currently being executed. 3) …the amount of data – the number of bits – they can work with at a time. 4) …the microprocessor looks for it on … 5) …its information is lost when the computer is turned off. 6) …expansion slots that allow users to install adapters or expansion boards. III. Language work: Relative clauses A. Study these sentences: 1) The microprocessor is a chip. 2) The chip processes the information provided by the software. Both these sentences refer to chip. We can link them by making sentence 2 a relative clause: The microprocessor is a chip which processes the information provided by the software. The relative clause is in bold italics. Note that ‘The chip’ in sentence 2 becomes ‘which’. Study these other pairs of sentences and note how they are linked. 3) The teacher has just arrived. 4) The teacher is responsible for the computer centre. 3+4: The teacher who is responsible for the computer centre has just arrived. B. Now link these sentences. Make the second sentence in each pair a relative clause. 1) The microprocessor coordinates the activities. These activities take place in the computer system. 2) Last night I met someone. He works for GM as a computer programmer. 3) A co-processor is a silicon chip. The chip carries out mathematical operation at a very high speed. 4) A megahertz is a unit of frequency. The unit is used to measure processor speed. 5) A password is a secret word. The word must be entered before access is given to a computer system. 6) A gateway is a device. The device is used to interconnect different types of networks. 7) Here’s the floppy disk. You lent me the disk. 8) A USB port is a gateway. The gateway is used to connect all kinds of external devices to your computer. 9) Virus is a destructive software. This software causes damage to the data, the information or the hardware of the computer. IV. Reading A. Read the text and complete it with the phrases in the box. b. All the information stored in the RAM is temporary c. Microcomputers make use of two types of main memory d. ROM chips have ‘constant’ information e. The size of RAM is very important. Main memory: RAM and ROM The main a application, the microprocessor finds computer is also called the ‘immediate its location in the storage device (the access store’, as distinct from any floppy or hard disk) and transfers a storage memory available on disks. temporary copy of the application to (1) …………: RAM and ROM, both the RAM area. Consequently, (3) contained chips ………… If we want to increase the connected to the main board of the performance of a computer when computer. several applications are open at the in RAM memory electronic stands for of ‘random access memory’ and is the working same time or when a document is very complex. area of the computer, that is, the basic location where the microprocessor stores the required information. It is called ‘random access’ because the processor can find information in any cell or memory address with equal speed, instead of looking for the data in sequential order. (2) …………, so it is lost when The the machine is turned off. Therefore, RAM capacity can if we want to use this information sometimes be expanded by adding later on, we have to save it and store it extra on contained in single in-line memory a disk. When running an chips. These are usually modules or SIMMs, which are Memory module. ROM is an acronym for ‘read installed in the motherboard of the only memory’, which implies that the computer. We can designate a certain processor can read and use the amount of RAM space as a cache in information stored in the ROM chip, order to store information that an but cannot put information into it. (4) application uses repeatedly. A RAM …………, including instructions and cache may speed up our work, but it routines for the basic operations of the means that we need enough internal CPU. These instructions are used to memory or a special cache card. start up the computer, to read the information from the keyboard, to send characters to the screen, etc. They cannot be changed and are not erased when the power is turned off. For this reason, the ROM section is also referred to as firmware. B. As we have seen, there are three types of memory used by computers: RAM, ROM and secondary storage. Look through this list of features and decide which type of memory they refer to. 2) Any section of the main memory can be read with equal speed and ease. 3) It is available in magnetic, optical and video disks 4) A certain amount of this memory can be designated as ‘cache’ memory to store information in applications that are used very frequently. 5) It stores basic operating instructions, needed by the CPU to function correctly. 6) Memory which can be expanded by adding SIMMs of 8 MB, 16 MB, 32 MB or other major increments. 7) Information is permanent and cannot be deleted. 8) You can save and store your documents and applications. V. Vocabulary quiz In groups of three, write answers to these questions. The winners are the group that answers the most questions correctly in four minutes. 1) What are the main parts of the CPU? 2) What is RAM? 3) What memory section is also known as ‘firmware’? 4) What information is lost when the computer is switched off? 5) What is the typical unit used to measure RAM memory and storage memory? 6) What is the meaning of the acronym SIMM? 7) What is a megahertz? 8) What is the ALU? What does it do? 9) What is the abbreviation for ‘binary digit’? 10) How can we store data and programs permanently? VI. Your ideal computer system A. Make about the features of the computer that you would like to have CPU: ………….. Speed: ………….. Optical disk drives: ………….. Hard disk: …….. Software: ………. Minimum/maximum RAM:………….. Monitor: ……… B. Now describe it to your partner. Useful expressions It has got… It’s very fast. It runs at… The standard RAM memory… and it is expandable… The hard disk can hold… I need a SuperVGA monitor because… As for the Internet… Lesson 4. Buying a computer Buying a Home Computer Buying a home computer can be a bit like buying a car-it's a major purchase decision. There are many makes and models, and many people willing to give advice about what to buy and where to buy it. To make the most of your shopping experience, and sense of the variety of choices facing you, you'll want to do your homework before heading out. And, whether buying new or used, know what you want the computer to do for you and how much you can afford to spend. Deciding On An Operating System Computers can be categorized into two basic operating systems or typesthose designed primarily for graphics work and those primarily intended for word processing. Although both are capable of either function. To help you decide between the two operating systems, determine whether you will use the computer more for graphics or mainly for producing text, the type of software you want to run and which type of computer it runs on (although most software has versions for both operating systems). If you're buying the computer for your child's use, see what kind of computer is used in his or her classroom. If you want to send files back and forth with your sister, check out her system. Both systems are great- one is not better than the other-but it helps to know what you want to do with your computer before you commit to either type. Buy from a Reputable Dealer Buying your computer from a reputable electronics dealer means you're more likely to get a better warranty and better service. The computers they carry have succeeded because of the high-quality of their machines and their service. What to Consider Before Buying a Computer How will you use the computer? Do you plan to write papers for a class using word processing software, keep track of your finances or business on a spreadsheet, send electronic mail (e-mail) to relatives across the country, surf the World Wide Web, or just play computer games? Knowing how you'll use your computer will help you determine what type of minimum requirements the computer needs to have. Bigger Programs Require More Memory Keep in mind that the size of the software you plan to run will dictate how much memory your computer should have. Consider how you will use your computer, then ask about the software you'll need. A sales associate should be able to tell you how many megabytes of memory you'll need based on your planned computer use. Typically, you'll need a minimum of 64 megabytes of memory to adequately run most programs. Most computer systems come with preloaded software. Be sure to check the inventory of what's on the computer, so you'll know what you're getting. KEEP IN MIND THAT THE SIZE OF THE SOFTWARE YOU PLAN TO RUN WILL DICTATE HOW MUCH MEMORY YOUR COMPUTER SHOULD HAVE How Much Should You Spend? With computers, it's a good rule of thumb to buy as much as you can afford. Depending on your needs, be prepared to spend between $1,000 for an entry-level computer to $3,000 and up for a higher-end computer. You don't have to buy the biggest, fastest or most powerful computer on the market, but you should buy the best system you can- that includes monitor, microprocessor, memory, hard drive, keyboard, printer, etc. You might want to hold off buying any software until you've had a chance to take a look at the software which should come with your new computer. WITH COMPUTERS, IT'S A G00D RULE OF THUMB TO BUY AS MUCH AS YOU CAN AFFORD . . . Laptop vs. Desktop Models After you've made all the decisions about what you want in a computer, you also can choose what type of model you'd like: laptop or desktop. Laptop models are portable, and if you travel a lot and need to bring your computer along, this is the obvious choice. Desktops have larger screens (although you can use a larger screen with a laptop model) and are easily expandable. Laptops are generally regarded as companion computers to desktops, but they are sophisticated enough to be your primary computer. There are some laptops, called notebooks, that weigh less than five pounds. IF YOU DON'T KNOW A MOUSE FROM A RAM, THEN YOU NEED TO BRUSH UP ON THE LANGUAGE OF COMPUTERS . . . Computer Terminology Glossary If you don't know a mouse from a RAM, then you need to brush up on the language of computers. Here's a crash course. Cache: Cache is another type of memory kindred to RAM. Cache is used by the computer to quickly move data between the RAM and the CPU. CD-ROM Drive: Most new computers now come with a CD-ROM drive as standard equipment. A CD-ROM drive reads data from a disc. These CDs look like a music CD, but hold data instead of music. CD-ROMs also contain games, dictionaries, recipe files . . . the list is endless. CPU: The CPU, or central processing unit, is the brains of the computer. Most new Windows based programs use a Pentium processor. New Macs use a different type of CPU called Power PC. THE CPU, OR CENTRAL PROCESSING UNIT, IS THE BRAINS OF THE COMPUTER . . . Disk Drive: Virtually all computers come with a disk drive that can read and save information on portable diskettes, also called floppy disks. You can use floppy disks to save information or to load new software onto your computer. Hard Drive: The hard drive also is called the hard disk. You'll probably never see it because it is nestled inside your computer. It's the computer's electronic filling cabinet, and it stores the computer's operating system, files, programs and documents. Keyboard: Just like a typewriter keyboard, this device is the primary way of inputting data into many programs. MODULE 2. INPUT/OUTPUT DEVICES In this lesson, you will learn how to: Describe input and output devices Identify important keys on a keyboard and explain their functions Distinguish between facts and opinions in advertisements about peripherals (e.g. scanners) Understand technical specifications given about monitors Use different grammatical forms to give instructions, advice or warnings Compare different types of printers, and choose one for yourself Understand what sort of input/output devices are used by disabled people. Lesson 1. Type, click and talk! I. Interacting with your computer Input devices are the pieces of hardware which allow us to enter information into the computer; the most common are the keyboard and the mouse. We can also interact with a computer by using one of these: a lightpen, a scanner, a trackball, a graphics tablet, a keyboard, a joystick or a voice recognition device. Look at the illustrations and see if you can name them. 1……………… 2…………. 3……………… 4…………… 5……………… 6……………….. 7………………… II. Speaking Work in pairs III. About the keyboard C. Look at the picture of a PC-compatible keyboard below and identify these groups of keys 1) Alphanumeric keys: arranged in the same order as a typewriter. 2) Function keys: used by various programs to instruct the PC to perform specific tasks such as Save, Copy, Cut, Paste, Help, etc. 3) Numeric keypad: set of numeric or editing keys. The Num Lock key is used to switch from numbers to editing functions. 4) Editing keys: cursor and other keys usually used within word processors to page up and down in a long document or to edit text (using Insert or Delete keys) 5) Special keys: used is to issue commands or to produce alternative characters in key combinations, for example, the Alt key A PC-compatible keyboard D. Match these keys abbreviations with their full names 1 Esc a. Alternate 2 Alt b. Page Up 3 Ctrl d. Escape 4 Pgdn f. Control 5 Pgup e. Delete 6 Ins g. Page down 7 Del c. Insert E. Computer system may have different keyboard options. Here is an example. If we enter the Key Caps menu on a Macintosh in Courier and then press the Option key, we obtain the following symbols on the screen. Identify these symbols on the keyboard 1. Slash 2. Not equal to 4. Trademark 5. Yen sign 7. Number 8. Registered trademark IV. Reading A. Try to answer these questions 1) How is connected the mouse to the computer? 2) What does the mouse pointer look like on the screen? 3) What are the functions of the mouse buttons? 4) What advantages are the of a computer mouse over a 3. Plus and minus 6. Copyright keyboard? Read the text to check your answer or to find the right answers The mouse! The computer mouse is a hand-operated device that lets you control more easily the location of the pointer on your screen. You can make selections and choices with the mouse button. The mouse contains a rubber-coated ball that rests on the surface of your working area or a mousemat. When the mouse is moved on that surface, the ball rolls. The ball’s movements up and down, and left and right, turn the two axles inside the mouse. As they turn, detectors register the changing position. A small integrated circuit inside the mouse sends signals to the operating system, which instructs it to move the pointer on your screen. B. Here are some basic mouse actions. Match the terms in the box with the explanations below a. Click b. Double-click c. Drag 1) Position the pointer on something, then rapidly press and release the mouse button twice. (You do this to load a program, open a document, or select text or graphics) 2) Position the pointer on something, hold down the mouse button, and move the mouse to the desired position, then release the button. (You do this to move an image to a new location on the screen) 3) Position the pointer on something, then press, and release the mouse button. (You do this to place the insertion point, to choose an option, or to close a window) V. Language work: Describing function We can describe the function 3. ROM is used for holding of an item in a number of ways. instructions which are needed Study these examples. to start up the computer. Using the Present simple 1. ROM holds Emphasizing the function instructions 4. The function of ROM is to which are needed to start up hold instructions which are the computer. needed to start up the Used to-infinitive, Used for + ‘-ing’ form computer. 2. ROM is used to hold instructions which are needed to start up the computer. Now, match each item in Column A with its function in Column B. Then describe its function in two ways. A Item B Function 1 RAM a controls the cursor. 2 processor b inputs data through keys like a typewriter. 3 mouse c displays the output from a computer on a screen. 4 clock d reads DVD-ROMs. 5 3.5’’ floppy e reads and writes to removable magnetic disks. f holds instructions which are needed to start up the drive 6 monitor computer. 7 keyboard g holds data read or written to it by the processor. 8 DVD-ROM h provides extremely fast access to sections of a drive 9 program and its data. cache i controls the timing of signals in the computer. 10 ROM j controls all the operations in a computer. Lesson 2. Capture your favorite images I. Scanners: The eyes of your computer Use the information in the text and the illustration to answer these questions. 1) What is a scanner? Give a definition in your own words. 2) How does a color scanner work? What does a scanner do? A scanner converts texts or pictures into electronic codes that can be manipulated by the computer. In a flatbed scanner, the paper with the image is placed face down on a glass screen similar to a photocopier. Beneath the glass are the lighting and measurement devices. Once the scanner is activated, it reads the image as a series of dots and then generates a digitized image that is sent to the computer and stored as a file. The manufacturer usually includes software which offers different ways of treating the scanned image. A color scanner operates by using three rotating lamps, each of which has a different colored filter: red, green, and blue. The resulting three separate images are combined into one by appropriate software. What do you think are the benefits of using scanners in business? II. Facts and opinions A. Read the advertisements on the following page and underline what you think are facts and circle the opinions. Then write them in the table below. Facts are ‘real’ objective information. Opinions usually include emotive words, positive/negative phrases, and subjective (persuasive) statements. Note: dpi: dots per inch 9’’ x 15’’: scanning area measured in inches. JPEG: Joint Photographic Experts’ Group – a standard format in image compression. With JPEG, your images can be compressed to 1/50th of normal size, resulting in a substantial saving of disk space and time. ColorScan XR Facts Flatbed scanner 600 dpi of resolution ScanPress 800 Self-calibrating flatbed scanner 51 You can get crisp, clean The highest technology Opinions scans ColorScan XR from Sunrise The ColorScan XR ScanPress 800 from The ScanPress 800 is a self- Sunrise is a flatbed scanner with calibrating, flatbed scanner with 800 600dpi of resolution and 9’’ x 15’’ dpi of resolution. You can scan from of scanning area. black and white to 24-bit color. The Think of the possibilities. package You can enter data and graphic images directly into your includes a hardware accelerator for JPEG compression and decompression. JPEG applications – word processors or technology saves disk space by databases. You can get crisp, clean compressing images up to 50 to 1. scans for color compositions, video, and animation work. manufacturers It comes complete with its own image-capture have chosen the highest technology to give you the which best scans with the least effort. It grey produces images with high color retouching. And it’s easy to use. definition and sharpness. And it What more could you want for comes with OCR software and only £616? It couldn’t be cheaper. Adobe allows for software In creating ScanPress 800, the color and In the field of flatbeds, the ColorScan XR is a clear winner. Photoshop, manipulate all so you can the images you capture. This is fantastic machine you will love working with. And at only £1,037 it is an excellent investment B. In small groups, compare your answers and decide 1) Which text has got more persuasive language? 2) Which text is more factual or objective? III. Language work: Making comparisons A. Formation The regular comparative and superlative forms of descriptive words (adjectives and adverbs) are shown below: 51 52 1. Words of one syllable add the ending –er and –est. Adjectives Adverbs Absolute Comparative Superlative New newer newest old older Oldest soon sooner Soonest late later latest 2. Words with three or more syllables are preceded by more and most. Adjectives Absolute Comparative Superlative interesting more interesting most interesting Adverbs convenient more convenient most convenient easily more easily most easily carefully more carefully most carefully 3. Adjectives with two syllables may be like 1 or 2 above in that they will add the ending –er and –est if they end in –y or –ly, -ow, -le, and – er. Absolute Comparative Superlative tiny tinier tiniest speedy speedier speediest early earlier earliest friendly friendlier Friendliest -ow shallow shallower Shallowest -er clever -y -ly cleverer cleverest 4. Most of the remaining two-syllable adjectives take more and most in front of them Absolute Comparative Superlative 52 53 careful boring more most careful careful more boring awful more awful most boring most awful 5. Some common two-syllable adjectives can have either type of formation. Absolute Comparative common Commoner/ Commonest/ more most common common gentle gentler/ quiet Superlative gentlest/ more gentle most gentle quieter/ quietest/ more quiet most quiet 6. Two-syllable adverbs ending in –ly take more and most. Absolute Comparative quickly slowly Superlative more most quickly quickly more slowly most slowly 7. A small number of adjectives and adverbs have an irregular comparative and superlative form. Examples: Adjectives Absolute Comparative Superlative bad worse worst far further/farther furthest/farthest good better best many more most 53 54 Adverbs badly worse worst much more most little less least B. Use in sentences Comparison may show equivalence, non-equivalence, the highest degree of something, and parallel increase. 1. Equivalence: the following words and constructions are used to show that things or people are similar in some way. as … as the same similar/ly either as many … as are similar equal/ly all as much … as equal to compared to/with both similar to is like each alike Examples: Here, the term ‘processor’ is equivalent to the central processing unit. Laptops are as powerful as microcomputers 2. Non-equivalence: the following words and constructions are used to compare or contrast things or people that are separate from each other. not as … as greater than unequal(ly) …-er than not as many … as unlike more … than not as much … as not the same as less … than not equal to fewer … than Examples: A mainframe is larger and more expensive than a microcomputer. Learning to use a computer is not as difficult as learning to program 3. The highest degree: the following words and constructions are used to compare one member of a group with the whole group (superlative). the …-est the most … the least … Examples: This is the most popular package on the market today. 54 55 BASIC is probably the least difficult programming language to learn. 4. Parallel increase: the following words and constructions are used to show parallel increase (two comparatives). the … -er, the more … the more…, the ….-er the …-er, the less… Examples: The more memory your computer has, the more data it can store. The bigger your computer system is, the less time you spend waiting. The more training you give to your employees, the better they will perform. C. The following sentences express computer capabilities and limitations. Decide whether the sentences express equivalence, non-equivalence, or the superlative, then underline the words expressing the comparison. The first one has been done for you. 1) equivalence Speeds for performing decision-making operations are comparable to those for arithmetic operations. 2) ……………. Even the most sophisticated computer, no matter how good it is, must be told what to do. 3) ……………. A computer can perform similar operations thousands of times without becoming bored, tired, or careless. 4) ……………. For example, modern computers can solve certain classes of arithmetic problems millions of times faster than a skilled mathematician. 5) ……………. One of the most important reasons why computers are used so widely today is that almost every big problem can be solved by solving a number of little problems. 6) ……………. Finally, a computer, unlike a human being, has no intuition. IV. Further reading Advertisement: A scanner Some of the adjectives have been left out of this persuasive advertisement. Read it and complete it with words from the box. The stunning affordable GT-7000 provides wide excellent amazing complete easy-to-use at a very (2) ……………. price. Using (1) a combination of EPSON Advanced ……………. software and hardware Scanning Technologies, the GT-7000 quality with powerful, 55 56 provides (3) ……………. quality ……………. posters, letters, flyers, whether scanning text documents, and Web pages. photos, or films. The EPSON START Button takes the complexity out of scanning. Simply press this button once and your photo or document is scanned and inserted into the software package of your choice ready for editing, printing, or The GT-7000 is also available as the publishing. GT-7000 Photo scanner (6) Included with the GT-700 is a (4) ……………. with advanced film ….…………. range of bonus software adapter unit. to help with home and business scanning, printing, and publishing, allowing you to create (5) 56 57 Lesson 3. Viewing the output I. Read and think Describe the screen of our computer to another student. Use these questions to help you. - What size is it? - Does it produce a high quality image? - Which is the common size of a monitor ? II. Reading A. Read the text and try to guess the meaning of any new words in the box below. Refer to the Glossary if necessary. dot pixel resolution scan (verb) display hertz flicker bit-mapped visualize The monitor The quality of the display depends on 75 times per second, depending on the the number of dots which make up the system. If the rate of this repetition is image. The more dots the better low, we can perceive a flickering, display. unsteady screen, which can cause eye fatigue. However, a fast-moving 75 Hz ‘refresh rate’ eliminates this annoying flicker. The size of the screen is the diagonal distance from one corner to another. Low resolution display Typical resolutions are High resolution display 640 x 480 The actual area for images is smaller or than this. 1,024 x 768 pixels. The diagrams The price mainly depends on the above show how pixel density affects screen size. Common monitor size are the image: a larger number of pixels 14-inch, 17-inch, and 21-inch. The gives a much clearer image. price also depends on aperture grill The monitor refreshes the image on pitch, resolution and number of the screen all the time. The faster this controls. happens, the less the screen flickers. Aperture grill pitch controls the space This sequence is repeated 50, 60, or between the dots which make up the 57 58 image. The less space between the display adaptor, which plugs into the dots, the better the display. Most motherboard monitors offer 0.28mm dot pitch but Different boards drive different types some go as high as 0.31mm or as low of displays. For example, the VGA as 0.25mm. (video The monitor is controlled by a become a standard for color monitors. of graphics the array) computer. card has separate circuit board, known as the B. Read the text again and answer these questions. 1) According to the writer, what is the importance of ‘pixel resolution?’ 2) Which unit of frequency is used to measure the refresh rate of a monitor? 3) In the writer’s opinion, why can a low refresh rate produce eye fatigue? 4) Is a dot pitch of 0.31 mm is better than one of 0.25mm ? why ? 5) Does the price of a monitor depend only on the size ? 6) Is a maximum resolution of 1600x1200 better than 1280x1024 ? why ? III. Writing A. Tables often include abbreviations and technical words that are not easy to understand. Look at this table and the explanation of Monitor A’s specifications. Monitor Pixel Visual Refresh size face res. display rate 16’’ flat 870 x 256 60 Hz 640 shades of glare grey filter A Superview Monitor B Tilt- CRT CRT 19’’ flat 1,024 x 32,000 768 colors 75 Hz andswivel √ √ Other features anti- video card Paintview The specifications of Superview (Monitor A) may be explained like this: 1) This monochrome monitor has a 16-inch screen. 2) This displays system has a resolution of 870 x 640 pixels that gives you enough quality for graphics. 58 59 3) It offers 256 shades of grey. 4) It has a 60-hertz refresh rate. (This is quite low, so it will probably produce a flickering, unsteady image.) 5) A tilt-and-swivel stand is used to move the monitor up, down and around so that the angle can be adjusted for each user. 6) The anti-glare filter helps eliminate eye fatigue and electromagnetic radiation. B. Use this example to help you describe Monitor B IV. Language work: Instructions and advice Study these ways of giving instructions and advice and then rewrite the sentences below about what you should do to protect your eyes. Use modal auxiliary verbs in your sentences. Using imperatives Position your keyboard at the same height as your elbows. Don’t use a monitor that is fuzzy or distorts the image. Using should/ought to You should position your keyboard at the same height as your elbows. = You ought to position … You shouldn’t use a monitor that is fuzzy or distorts the image. = You ought not (oughtn’t) to use … 1) Do not stare at the screen for long periods of time. 2) Avoid placing the monitor so that it reflects a source of bright light, such as a window. 3) Keep the screen clean to prevent distorting shadows. 4) If you work in an office with a large number of computers, don’t sit too close to the sides or backs of the monitors. 5) Buy a protective filter that cuts down the ELF (extremely low frequency) emissions. 59 60 Lesson 4. Choosing a printer I. Reading A. How many kinds of printers can you think of? Make a list. B. Read the text below and label these types of printers. The resolution depends on the The quality (resolution) of number of pins (9 or 24) the images ranges from 180 to 720 dots per inch (dpi) 1 ………………… 2 ………………… Provides high quality output – Provides the highest a resolution of 600/1200 (dpi) resolution – more than 2,000 dpi. 3 ………………… 4 ………………… Provides high quality for linework (like lines and curves) 60 61 5 ………………… Types of printers Printing is the final stage in creating a document. That is the purpose of the printers joined to your computing equipment. Since the results you can obtain with different types of printers will vary substantially, here is a guide to help you decide which one is most suitable for your needs. Dot-matrix printers use pins to print the dots required to shape a character. They print text and graphics and nowadays some of them can print up to 450 characters per second (cps); however, they produce relatively lowresolution output – 72 or 144 dots per inch. This level of quality, while suitable for preliminary drafts, is not recommended for reports or books that have a wide audience. They are slower than laser printers but much cheaper. One common type of non-impact printer is an ink-jet printer. It operates by projecting small ink droplets onto paper to form the required image. This type of printer is quite fast, silent, and not so expensive as a laser printer. Nevertheless, you can expect high quality results because there are some ink-jet printers on the market with a resolution of 720 dpi. Bubble-jet printers work the same way. Laser printers produce output at great speed and with a very high resolution of 600/1200 dpi. They scan the image with a laser beam and transfer it to paper with a special ink powder. They are constantly being improved. In terms of speed and image quality they are preferred by experts for different reasons: they have a wider range of scalable fonts, they can emulate different language systems, they can produce graphics, and they have many other advantages. It goes without saying that they are still expensive. C. Read the text again and complete this table with the most relevant information. Then compare your notes with a partner. Type Technical specifications and other features of printer Dot…………………………………………… matrix Ink-jet …………………………………………… Laser …………………………………………… 61 62 62 63 II. Discourse cohesion Reference signals: Read the text and say what the underlined words refer to. Printing is the final stage in creating a document. That is the purpose of the printers joined to your computing equipment. Since the results you can obtain with different types of printers will vary substantially, here is a guide to help you decide which one is most suitable for your needs. Dot-matrix printers use pins to print the dots required to shape a character. They print text and graphics and nowadays some of them can print up to 450 characters per second (cps). III. Scan reading: Quiz Read the advertisements for printers below, and then with your partner, answer the questions. See who in your group/class can finish first. 1) How many laser printers are advertised here? 2) Is there a printer that operates by spraying ink droplets onto paper? 3) Which laser printer offers the highest resolution or output quality? 4) Which printer is the most expensive? 5) Which one would you recommend to a friend who does not have much money? 6) Which one has more internal fonts? 7) A printer language is software that tells printers how to print a document. Can you find two types of laser printer languages? 8) What connectivity features are offered by the Turbo Laser Writer QR? 9) A very common feature in advertisements is the use of abbreviations. Find the abbreviations for these expressions: dots per inch, characters per second, pages per minute, small computer system interface, and liquid-crystal display. Turbo LaserWriter QR Workgroup laser printer. 15 pages per minute. 600 dpi for graphics. 36 MB of RAM. Includes Adobe PostScript and Hewlett Packard PCS printer languages. 75 resident fonts. Connectivity: one bi-directional parallel port, one LocalTalk port, and one Ethernet port for networks. 12 month warranty. £1,150 Stylus Dot-matrix Printer £179 Dot-matrix printer with 24 pins. Prints text and graphics. 450 cps. Compatible special interface. Free unlimited hotline support for our customers. One year on-site maintenance. 63 64 Color PostScript Printer Color printer. 40 Adobe PostScript fonts. 36 MB RAM with a SCSI interface for an optional 20 MB hard disk. Parallel, serial and AppleTalk interfaces. HP plotter emulation. Thermal printing system. 30-day money-back guarantee and 1 year’s on-site parts and labor. £2,249 COLOR INK JET Color: Up to 18 ppm £210 Resolution: Up to 4800 x 1200 optimized dpi on premium photo paper Paper input capacity: Up to 150 sheets Duplex printing: Automatic (optional) Reliable color printer with costeffective features for the home or office on a budget IV. Crystal laser Printer II 14 pages per minute. 6 MB. Two 200 sheet selectable input trays. £999 LCD display. 80 internal scalable fonts. A resolution of 1,200dpi. Comes with PostScript language and PCL (printer control language). Telephone hotline support. Micro Laser XT Personal laser printer, 5 pages per minute. 4 MB RAM expandable to 64 MB. Parallel interface. 200 sheet input tray. 35 resident fonts. Oneyear on-site maintenance. Prints on a wide range of materials and sizes. £649 Language work: Revision of comparison A. Study the sentences below and do the following: Draw a circle around comparatives and a rectangle around superlatives Identify two special cases. 1) Dot-matrix printers are cheaper than laser printers. 2) A photosetter is the fastest output device. 3) A thermal wax printer is more expensive than a monochrome laser printer. 4) The Micro Laser XT is the most reliable of all. 5) Personal laser printers cost less than ordinary laser printers. They also weigh less and require less space. 6) My printer has more resident fonts than yours. 7) This printer offers laser quality at a lower price. 8) Monochrome printers operate faster than color ones. 9) Dot-matrix printers are too slow. 10) Dot-matrix printers are not quick enough. 64 65 V. Describing your ideal printer Describe to your partner the characteristics of the printer you would like to use. Give reasons. (Does your ideal printer look like the one below?) 65 66 Lesson 5. I/O devices for the disabled I. Adaptive technology Working in pairs or small groups, look at the pictures and discuss these questions. Use the phrases in the box to help you. 1) What sort of difficulties do you think are experienced by computer users with limitations of vision or mobility? 2) What types of devices could be helpful to blind users? 3) How can a person with mobility limitations communicate with a computer? 4) Think of possible tools or solutions. Key words blind person adapted keyboard magnification on-screen keyboard software Braille printer adaptive switch motor-impaired voice recognition system screen-pointing device speech synthesis system optical head pointer person 66 67 II. Reading A. Read the text below and find: 1) Two examples of speech synthesis systems. 2) The kind of software which is recommended for someone with partial vision. 3) The speed of the Juliet Braille printer. 4) The ways adaptive switches can be activated. 5) The function of voice recognition devices. 6) The devices used by the disabled person at the Center for the Handicapped in Seattle. 7) How the blind student interacts with the machine. Computer for the disabled Sal has all the necessary qualities for becoming a good telemarketer*. what will it cost the company to adapt the workplace to accommodate him? He’s bright, outgoing, and persistent. Phillis must accommodate him, He is also blind. Phillis wants to hire since her company is in the US, and him, but she has some concerns. How therefore subject to the Americans will he be able to use the company’s with Disabilities Act or ADA #. But database if he can’t see the monitor? she needn’t worry. The latest adaptive How office technology for personal computers correspondence? And more important, provides a cost-effective way to allow will he read 67 68 Sal and workers with other disabilities Open to do their job with independence. Arkenstone can read printed material The first task in adding adaptive technology to a computer is to Book Unbound from to blind people and send the text to a PC. determine the specific needs of the To adapt equipment for motor- disabled worker in question. To work impaired workers unable to type on effectively, most blind users need to standard keyboard, you can employ have their computers adapted with adapted keyboards, head pointers, and technologies such as speech synthesis, Morse code systems. magnification, Braille and OCR. One example of a speech-synthesis system is VertPro from TeleSensory. Adapted keyboard. The user can also have an external adaptive Voice system based word processors, databases, spreadsheets, and other text-based Window Bridge from Syntha-Voice can verbalize both MSDOS and Windows-based applications. vision, magnification select menu screen keyboard. Adaptive switches come in a variety of forms that can be activated by eye movements, breath control, or any other reliable muscle movement. Another way of controlling computers is via a Morse code system. For someone with limited but usable to choices or virtual keys from an on- This product can read MS-DOS- software. switch a package software may be appropriate. Magnification software can enlarge text appearing on the Such a system consists of adaptive switches and software for people who can’t type on a full keyboard, but have the ability to physically push at least one key. screen by up to 16 times. For Braille output, the Juliet printer from Enabling Technologies interfaces to any standard serial or parallel port. This printer can emboss Braille on both sides of a page at a Adaptive switch speed of 40 characters per second. The Reading Edge OCR from Xerox Imaging Systems and the Arkenstone 68 69 Voice-recognition systems permit (Adapted from ‘Computers for the people to issue verbal commands to a disabled’, Joseph J. Lazzaro, BYTE computer to perform data entry. Magazine, June 1993) * Someone who markets products by phone. # This makes it illegal for employers to discriminate against people with disabilities. B. Match the terms in the box with the explanations below. a. disability b. Braille c. port d. interface e. Morse code f. speech synthesizer 1) A system of writing and reading (using raised dots) for blind people, to enable them to read by touch. 2) A socket to connect I/O devices 3) Incapacity 4) A system of dots and dashes, or short and long sounds, representing letters of the alphabet and numbers. 5) A hardware device used in conjunction with a screen reader program to convert screen contents into spoken words. 6) Channels and control circuits which allow different parts of a computer to communicate with one another. It also refers to the part of the system that allows a user to interact with programs. III. Writing Write a letter to Mike Hartley – the director of the Adaptive Technology Project for the Blind in Washington, DC. – asking for information about computers for the disabled. Make sure you include the following points. - Begin by saying why you’re writing: I’m writing to… - Ask for information about specific I/O equipment for deaf, blind, and motor-disabled workers: I would like to know… Ask for a free handbook about how to add adaptive technology to personal computers: I would be very grateful if… - End the letter appropriately: I look forward to hearing from you soon. Yours sincerely, IV. Language work: Compound nouns 69 70 A. Formation and use The language of computing in English contains an ever-increasing number of compound nouns, that is, a group of two or more nouns which act as a single noun. Examples memory capacity information systems an address bus an arithmetic unit a bar code scanner a computer keyboard It is important to be able to recognize how such compounds are formed in order to understand what they mean. The exact relationship between the words depends on the particular expression, but all these expressions have one thing in common: the last word in the chain says what the thing is, while the preceding word or group of words describes the thing. So when we read compound nouns, we have to start with the last word and work backwards. Examples: An address bus is a bus dedicated to address information. The memory capacity of a computer is the capacity of its memory. A large number of possible meanings can be expressed by compound nouns. For instance, the first noun or group of nouns can tell us what the second noun is made of, what it is for, or what it is part of. 1. Material: the first noun tells us what the second noun consists of. Example: a silicon chip (a chip made of silicon) a ferrite ring (a ring made of ferrite) 2. Function: the first noun tells us what the second noun is for. Example: an address bus (a bus dedicated to address information an arithmetic unit (a unit which performs arithmetic functions) 3. Part: the second noun refers to a part of the first noun. Example: a computer keyboard (the keyboard of a computer) a monitor screen (the screen of a monitor) 70 71 a program feature (a feature of a program) 4. Activity or person: the second noun refers to an activity or person related to the first noun. Example: computer programming (the programming of computers) a computer programmer (a person who programs computers) systems analysis (the analysis of organizational systems) a systems analyst (a person who analyses organizational systems) 5. Multiple nouns: sometimes a compound noun will join together with one or more other nouns to give an expression that has three or four words. In such cases, it is important to examine the expression very carefully to break it into its constituent parts. The secret, as always, is to read the expression from the back towards the front. Example: 4 3 2 1 a document-image-processing program (a program which processes images of documents) Note: some expressions are written separately, while others are joined by hyphens. There are no clear rules for this. Sometimes you will see the same expression written in different ways in different texts. Example: document-image-processing program document image-processing program document image processing program However, it is important to be consistent within a single text. B. Exercises 1. A device that scans bar codes is called a bar code scanner. What name is given to: 1) a unit that gives a visual display of information on a screen? 2) a device that reads magnetic cards? 3) a device that plots graphs? 4) a device that prints using a laser as the light source? 5) a unit that holds magnetic disks? 71 72 6) a device that prints using a jet of ink? 7) the rate of transmission of data? 8) a package for making presentations using multimedia? 9) a program which processes data in batches? 10) the process for the conversion of disks for computers? 2. Using the explanations in Exercise 1 as models, write short simple explanations of the following items: 1) an input device 2) an optical character reader 3) a graphics stylus 4) a document sorter 5) a fiber optics transmission system 6) a sequence control register 7) a liquid crystal display 8) network configuration information 9) a desktop document manager 10) a multimedia editing software package 72 73 MODULE 3. STORAGE DEVICES Learning objectives In this lesson, you will learn how to: Ask and answer questions about hard disks Describe different types of storage devices Locate specific information in texts about optical disks Use technical vocabulary connected with disks and drives Give advice and make recommendations about disks and drives. 73 74 Lesson 1. Hard drives I. Before you read Try to answer these questions. 1 What is the main function of a hard disk? 2 Which unit is used to measure hard disk capacity? II. Reading A. Read the text quickly to find out if you were right in task 1. B. Read the text again and make a list of the technical aspects that you should consider when buying a hard disk When buying a hard disk… Hard disks have important advantages over floppy disks: they spin at a higher speed, so you can store, and retrieve information much faster than with floppies. They can also hold vast amounts of information, from 500 MB up to several terabytes. Apart from this, both types of disks work in the same way. To directly access the necessary information, the read/write heads of rigid disks seek the required tracks and sectors, and then transfer the information to the main memory of the computer or to another form of storage, all of which is done in a few Bearing in mind that you always need disk storage, it is good sense to ask yourself some vital questions: What size capacity do I need? What speed can I use? What kind of storage device is the most suitable for my requirements? If you only use wordprocessing programs, you will need less storage capacity than if you use CAD, sound and animation programs. milliseconds (ms). 74 75 Now let’s turn our attention to drive, known as ‘removable’, allows speed. Access times vary from 8 ms to information 20 ms. ‘Access time’ – or seek time – ‘cartridges’, which can be removed is the time it takes your read/write and heads to find any particular record. purposes. Popular removable hard You have to distinguish clearly disks include Jaz and Zip drives. A between seek time (e.g. 20 ms) and Jaz cartridge can store up to 2 GB of ‘data transfer rate’ (the average speed data, whereas a Zip drive can store up required to transmit data from a disk to 250 MB of data. system to the RAM, e.g. at 20 to stored Finally, be off-line a few recorded for on security words about megabits per second). Remember that ‘optical’ technology: CD-ROMS and the transfer rate also depends on the CD-Recordable drives have become a power of your computer. reality. However, magnetic hard disks When buying a hard disk you are still preferred for personal data should consider the kinds of drive storage, whereas optical discs are used mechanisms and products available. for There are ‘internal’ and ‘external’ information such as a dictionary or drives which are both fixed hard encyclopedia. recording large amounts of drives, i.e. rigid disks sealed into the drive unit, either within or attached to the computer. A third type of hard C. Now read these sentences and decide if they are true (T) or false (F) 1) Hard disks use rigid rotating disks. 2) ‘Seek time’ refers to the average time required for the recording heads to move and access data. 3) If you use multimedia applications, you need the same storage capacity as required for word processors. 4) ‘Access time’ and ‘data transfer rate’ mean the same. 5) Optical disks are magnetic. 6) Each Jaz cartridge can hold up to 1,000 MB of data 7) CD-ROM disks are used for storage of massive amounts of information. III. Work in group Work in group of three. Read two texts each and complete your sections of the table. 75 76 Medium Fixed Advantages Disadvantages hard Removable disk CD-ROM hard disk Magnetodisk Magnetic optical disk tape 1) Almost all desktop computers have hard disks. They are fast and store much amounts of data, but they are fixed inside the computer and you cannot use them to transfer data. 2) You can move data from place to place using removable hard disks. They are almost as fast as fixed hard disks and also have high capacities, but they are relatively expensive. They do not all conform to one standard and they are not very common. 3) CD-ROM disks are very common and conform to a standard. They are removable and can hold large amounts of data. They are also cheap to make. However, they are usually read-only. You can not change the information on them. They are also slow compared to hard disks. 4) Magneto-optical disks are like CD-ROMs, but you can write data on to them, they are removable, have large capacities, and last for a long time, but they are expensive and do not all conform to one standard. For this reason they are not very common. 5) Magnetic tape is a cheap medium. You can use it to store very large amounts of data, but it does not allow random access. Every time you read or write a piece of data, you start at the beginning of the tape. Tape drives are slow. Therefore, it is only suitable for doing backups. IV. Vocabulary The phrase hard disk consists sell drive of the adjective hard and the drugs noun disk. Make other phrases or copy words by combining hard and worker optical disk with these words. Give the meaning of each phrase or word compact in your own language. (Use your dictionary internal if currency hard dirk magnetic labor capacity 76 77 ware necessary) V. directory Language work: Revision of prefixes Fill in the gaps with the correct prefix from the following list auto de dec inter maxi mega micro mini mono multi semi sub 1) Most people prefers a color screen to a …………. chrome screen. 2) …………. script is a character or symbol written below and to the right of a number or letter, often used in science. 3) A …………. byte equals approximately one million bytes. 4) Once you finish your program, you will have to test it and …………. bug it to remove all mistakes. 5) The introduction of …………. conductor technology revolutionized the computer industry. 6) If a computer system has two or more central processors which are under common control, it is called a …………. processor system. 7) The …………. imal system is a number system with a base of 10. 8) When the user and the computer are in active communication on a graphics system, we refer to this as …………. active graphics 77 78 Lesson 2. Magnetic storage I. Types of magnetic drive A. Look at the pictures and descriptions below and find the following 1) The name of the hard drive on a PC platform 2) The type of hard drive that plugs into a socket at the back of a computer. 3) The system that works in sequential format 4) The size and storage capacity of a floppy disk The inside Magnetic of a hard tapes and drive drive Most PCs have one internal hard A tape drive reads and writes data drive, usually called C: drive. It is on tapes. It is sequential-access- i.e. used to store the operating system, to get to a particular point on the the programs and the user’s files in tape, it must go through all the a convenient way. A hard drive can preceding points. Tapes can hold hold hundreds of gigabytes of data. hundreds of gigabytes of data and are used for data collection, backup and archiving A portable external hard drive External hard drives are connected to the USB or FireWire port of the computer. They can be as small as a wallet but can have as much capacity as internal drives, they are typically used for backup or as secondary storage B. Complete these sentences with words from the box capacity storage archiving hold secondary 78 79 1) There are basically three types of magnetic…………. Device available to the computer user-hard drives, diskettes and tapes. 2) Hard drives can………….hundreds of times more data than floppy disks. 3) A portable hard drives is a good choice for………storage. 4) Magnetic tapes are used for………..information that you no longer need to use regularly. II. Magnetic storage A. Read the text and then identify a sector and a track B. Read the text again and decide whether these sentences are true or false. Correct the false ones. 1) If you format a hard drive that has files on it, the files will be deleted 2) Hard drives cannot be partitioned to run separate operating systems on the same disk 3) Seek time and transfer rate mean the same thing 4) Disk drives are not shock resistant, especially in operating mode Magnetic storage Magnetic storage devices store (OS) organizes the disk surface into data by magnetizing particles on a circular tracks and divides each track disk or tape. into sectors. The OS creates a A hard drive spins at over 7,200 directory which will record the rpm and stores specific location of files. When you data a save a file, the OS moves the stack of metal read/write head of the drive towards rotating empty sectors, records the data and on disk called platters. This means you can writes an entry for the directory. Later store much more data and retrieve on, when you open that file, the OS information much faster. looks for its entry in the directory, New disks need to be formatted moves the read/write heads to the before you can use them, unless they correct sector, and reads the file in the come preformatted RAM from manufacturer. erases any existing files on a disk, so When the disk is do not format disks on which data that formatted, you don’t want to lose is stored. operating the area. However, formatting system 79 80 The OS allows you to create one or without affecting the data partition. more partitions on your hard drive, in The average time required for the effect dividing it into several logical read/write heads to move and find parts. Partitions let you install more data is called seek time (or access than (e.g time) your milliseconds (ms); most hard drives computer. You may also decide to have a seek time of 7 to 14 ms. Don’t split your hard drive because you want confuse this with transfer rate- the to store the OS and programs on one average speed required to transmit partition and your data files on data from the disk to the CPU, another; this allows you to reinstall measured in megabytes per second. one Windows operating and system Linux) on and it is measured in the OS when a problem occurs, C. Match these words (1-5) with the definitions (a-e) 1. Formatted 2. Directory 3. Read/write head 4. Head crash 5. Back up a. A file system that defines the structure for keeping track of the files. b. The part of a drive that reads and records data on a disk c. To make a copy of data of software in case the original disk is damaged d. Initialized; when the tracks and sectors on magnetic disks are set e. A serious disk malfunction; when the read/write head touches the rotating disk III. Language work: precautions A. Look at the HELP box and then match the instructions (1-6) with the pictures (a-f) 1) Do not expose discs to heat or direct sunlight 2) Check for viruses before opening files you receive from the Web or via mail 3) Make backup copies of your files 4) Don’t shake or move the computer violently while the hard drive is spinning 5) Keep you discs away from water and humidity 6) Hold discs by the edges or by one edge and the centre hole 80 81 HELP box Precautions We use the imperative to give precautions and warnings. Check your hard drive regularly a……. for logical and physical errors. d…….. …formatting erases any existing files on a disk, so do not formatting disks on which data that you don’t want to lose is stored We b…… use should + infinitive without to to give advice or to e……. talk about what we think is right …you should install an up-todate virus scanner We use shouldn’t + infinitive without to to give advice or to c….. f……… talk about what we think is wrong You shouldn’t turn your computer off and on quickly B. In pairs, discuss what you should or shouldn’t do to protect your data. Use the suggestions below Example: discs on top of each other (stack) You shouldn’t stack discs on top of each other. / Don’t stack discs on top of each other 1) Your anti-virus program regularly, since new viruses are created everyday (update) 2) Discs in a protective case (store) 3) Passwords and security devices to protect confidential information (use) 4) On discs with permanent marker pens (write) 5) The disc into the disc drive carefully (insert) Note: disc (optical media); disk (magnetic storage media) IV. Word building 81 82 Look at the words in the boxes. Are they nouns, verbs, adjectives or adverbs? Write n, v, adj or adv next to each word and then complete the sentences below. Magnet………… Magnetic……… Magnetically…… Magnetism……….. Magnetize………… Magnetized…….. 1) …………….is the science of magnetic phenomena and properties 2) Hard drive is………storage device 3) Data is recorded on a disk in the form of…….spots called bits V. Explaining hard drive precautions A friend has sent you an email explaining that she has just lost all of the information on her PC because of a head crash. Write a reply explaining the following. Why the head crash happened What precautions she should take with her new PC to avoid similar problems in the future What steps she could take up her files. 82 83 Lesson 3. Flash memory I. Flash-based gadgets Flash memory is used in many handheld devices. Match the descriptions (16) with the pictures (a-f) 1) This handheld console lets you play games stored on ROM game cards, which have a small amount of flash memory to save user data, for example high scores. 2) This flash memory card is used as “digital film” to store images on a digital camera. 3) This wireless LAN card allows laptop and PDA users to access the Internet form any Wi-Fi access point 4) This USB flash pen drive is the latest mobile drive for your computer. 5) It looks like an ordinary watch, but this USB drive from Edge Tech can store up to 1GB of flash memory. It will let you save and transfer your photos, songs and data files easily 6) This flash-based player provides everything you need to play music and store data on the go. It also comes with a built-in FM radio and voice recorder. a…….. d…………… II. b………….. c……… e…………… f………… Memory in a flash A. Look at the title of the text. Why is it a suitable title for an article about flash memory? Read the first paragraph of the text to find out. 83 84 B. Read the whole text and answer these questions. 1) What is flash memory? 2) What are the differences between RAM memory and flash memory? 3) What can devices which use multi-level cell technology do? 4) What are the differences between flash drives and external hard drives? 5) What is the advantage of using U3 technology in flash drives? 6) How much data can a flash memory card hold? 7) What is the name of the flash card created by Sony for its digital cameras? Memory in a flash Flash memory is a type of nonvolatile memory be store more that one bit per cell. The and chips are constructed with either NOR reprogrammed. Its name was invented or NAND gates. NOR chips function by Toshiba to express how much like a computer’s main memory, while faster it could be erased – “in a flash”, NAND works like a hard drive. For which means “very quickly”. example, in a camera, NOR flash electronically that can multi-level cell structure so they can erased Unlike RAM, which is volatile, contains the camera’s internal flash memory retains the information software, while NAND flash is used stored in the chip when the power is to store the images. turned off. This makes it ideal for use Flash memory is used in several ways: in digital cameras, laptops, network Many PCs have their BIOS switches, video game cards, mobile (basic phones stored on a flash memory chip and portable multimedia input/output player. In addition, it offers fast read so access times (although not as fast as necessary. RAM), with transfer rates of 12MB it can be system) updated if Modems use flash memory per second. Unlike ROM chips, flash because memory are rewritable, so you can manufacturer to support new update programs via software. protocols. it allows the Inside the chip, data is stored in USB flash drive are used to several floating gate transistors, called save and move MP3s and other cells. Each cell traditionally stores one data files between computers. bit of data (1 = erased and 0 = They programmed). New devices have a transported than external hard are more easily 84 85 drives because they use solid- MultiMedia Card, miniSD card, state technology, meaning that and xD-picture Card, Sony has they don’t have fragile moving its own product called the parts that can break if dropped. Memory Stick, used in its However, USB flash drives digital have less storage capacity than camcorders and the PlayStation hard drives. Portable. The photos stored in a New U3 smart drives allow still camera and data. They have two drive can partitions carry offloade applications that run on the host d to a computer compute can without video digital users to store both applications and cameras, requiring r installation. Flash memory cards are used to be via cable or SanDisk’s card readers read and write to just about every flash memory card store images on cameras, to wirelessly. Another option is to backup data on PDAs, to have a flash card reader transfer video permanently connected to your consoles, to record voice and PC; you simply eject the card music on MP3 players or to from the camera and put it into store movies on MP4 players. the reader instead of having to They are as small as a stamp, plug the camera in. games in and capacity can range from 8MB to several gigabytes. The only limitation is that flash cards are interchangeable often not between devices. Some formats include: CompactFlash, Secure Digital, The future of hard drives may be hybrid hard drives. Hybrid hard drives combine a magnetic hard disk and flash memory into one device. This allows computers to boot, or start, more quickly, and also reduces power consumption. III. Find words or phrases in the text with the following meanings A. Look at the HELP box and then, using affixation, conversion and compounding, try to make as many words as you can from blog, mail and print. Use a dictionary and the Internet to help you. Blog Mail Blogger (a person who To mail (the verb form) Print Printout (the pages 85 86 writes a blog) produced by the printer) B. Choose the correct word in brackets to complete this description of a voice recorder. Use a dictionary to help you. Olympus WS-320M digital voice HELP box recorder Slim, Word building attractive, and highly We can create new words from functional, the Olympus WS-320M existing words in three main ways: digital voice recorder packs 1GB of Affixation (adding a prefix or internal flash memory into is 1 suffix) (lighted/lightweight/lighten) housing, Adding a prefix letting you record up to 277 hours of volatile non-volatile high-quality audio in WMA format. date update It’s Adding a suffix: ideal for 2 (record/recordable/recording) notes or erase erasable long lectures, interviewing people, or install installation capturing song ideas before they Conversion (turning a noun into a disappear. As an added bonus, the verb, or a verb into a noun, etc) WS-320M can store up to 266 WMA network (now) to network or MP3 song for high-quality stereo 3 (verb) (player/playback/playoff). We networked all the PCs in The WS-320M features five the office separate file 4 (folds/folding/folders), We created a network of all the capable of holding 199 files each, so PCs in the office you can organize nearly, 1,000 files Compounding (putting two or by subject, theme or other category. more words together) Users also have the choice of four Hand + held handheld recording modes: HQ for high-quality I bought a new handheld last audio, LP and SP for extended week recording times, and ST HQ for Compounds can be written as two stereo recording. And thanks to the separate words (flash card), as two voice 5 (activation/activate/active) words joined with a hyphen (solidoption, users don’t need to press a state), or as one word (handheld). single button to start recording- the Unfortunately, there are no rules and WS-320M will record as soon as the some built-in microphone picks up sound. compounds even change spelling over time. For example, web 86 87 Perhaps the most convenient feature, site began as two words, then became however, is the built–in USB 6 hyphenated (web-site) and is now (connector/connect/connected), which written as one word – website. eliminates the need for a USB cable. Always check you dictionary or Once this is connected, you can 7 Google if you are not sure. (downloadable/download/upload) In pronunciation, compounds music files, images or documents normally have the main stress on the from your PC, in effect turning the first part, and the secondary stress on recorder into a small hard drive. You the second part, for example “video, can even transfer voice recordings to game” your computer for (store/storage/storeroom) 8 or multimedia use. IV. Vocabulary revision Solve the clues and complete the puzzle. Across 4..Thousand of a second, abbreviated to ms, used to measure the access time of hard drives. 6.. Floating gate transistors are called……..in flash memory technology. 7.. Prefix meaning very large or one thousand million. 11.. acronym for light amplification by stimulated emission of radiation 12.. capable of being deleted Down 1.. Concentric ring on the surface of a disc when the disc is formatted 2……………memory retains its data when the power is switched off. 3.. CD-RW means Compact Disc……… 5.. Abbreviation of digital versatile disc 8.. To write information on a disk or storage area 9.. Type of external bus or connector that plugs into the computer 10.. The physical mechanism that accepts, reads and writes data on disk 87 88 MODULE 4. BASIC SOFTWARE Learning objectives In this lesson, you will learn how to: Extract relevant information form texts about system software Recognize the characteristics of a typical graphical user interface or GUI Make a summary of a written text Talk about word processors Identify the function of different word-processing capabilities: search and replace, cut and paste, spell checkers, etc. Understand the basic features of spreadsheets and databases Acquire specific vocabulary related to Internet utilities. 88 89 Lesson 1. Operating Systems I. Warm-up A. Look at the diagram. What is the function of the operating system? B. Read the text below and complete it with the phrases in the box. Operating Systems An operating system is a piece of Unix was created by mavericks software that presents an interface Dennis Ritchey and Ken Thompson in between the computer and the user. 1970 from an older MULTICS system One of the first operating systems was which they both used but did not like the GM OS or General Motors very much. All versions of Linux and Operating System created in 1955. Mac OS X can trace their roots to There are two major kinds of directly back to the original Unix. operating systems, Command Line MS-DOS was Microsoft Corporation's Interfaces (CLI), and more recently, predecessor to Windows. Bill Gates Graphical User Interfaces (GUI). CLIs liked the Unix-like functionality of a use only text and no graphics to program designed by Tim Paterson of display information and the user Seattle Computer Products called navigates by means of the shell. QDOS, and he bought it, rebranded it Examples of popular CLI operating MS-DOS, and licensed it to IBM. MS- systems still in use today are MS-DOS DOS became the underlying CLI for and Linux. Examples of popular GUI all of Microsoft's GUI operating operating systems are Windows, [X- systems up to and including Windows Windows], and Macintosh OS. XP. Perhaps the most popular OS up until the 1990’s was Unix on the mainframe and [MS-DOS] on the PC. 89 90 peripherals are called device drivers. Another main task for an operating system is to control which users have access to specific parts of a computer's resources. Most operating systems have a facility to require users The main operating system today to authenticate with a username and on PCs is of course Microsoft password before being permitted to Windows with over 90% market use share. Windows started out as a home example, the OS will allow a system and office OS but has recently become administrator to set permissions on a a serious challenger to Unix systems file or a directory. the system resources. For even in the enterprise, where UNIX- Modern operating systems also derived systems still have a solid offer many utilities and conveniences foothold. including the ability to easily install What exactly is an operating and uninstall software applications, system composed of? The base unit of monitor the operating system is a collection of through a network connection, and programs called the kernel. The kernel more. is the most basic layer which controls applications such as web browsers and the hardware and the file system. text editors are now included as Other programs which help the kernel standard on most operating system interface with the components and releases. II. hardware, Even basic upgrade itself productivity Reading Read the text and answer these questions: 1) What is an operating system ? 2) What are two major kinds of operating systems? 3) Name one of popular GUI operating systems? 4) What was the most popular OS up until the 1990’s? 5) Whom was Unix created by? 6) Which is the main operating system today on PCs? 7) What exactly is an operating system composed of? 8) What is the kernel? 9) What is another main task for an operating system? 10) What do modern operating systems offer? 90 III. Basic DOS commands Match the DOS commands on the left with the explanations on the right. Some commands are abbreviations of English words. 1 FORMAT a erases files and programs from your disk 2 CD (or CHDIR) b copies all files from one floppy disk to another 3 DIR c changes your current directory 4 MD ( or d initializes a floppy disk and prepares it for use MKDIR) 5 DISKCOPY e displays a list of the files of a disk or directory 6 BACKUP f changes names of your files 7 REN g creates a subdirectory h saves the contents of the hard disk on floppy disk for (RENAME) 8 DEL security purposes IV. Language work: Revision of the passive A. The present simple passive We form the present simple passive with am/is/are + past participle. Example: - This program is written in a special computer language. - Programs and data are usually stored on disks. Remember that the word data takes a singular verb (3rd person singular) when it refers to the information operated on in a computer program. - The data is ready for processing. B. Fill in the blanks with the correct form of the verbs in brackets. 1) Various terminals (connect) ………………… to this workstation. 2) Microcomputers (know) ………………… as ‘PCs’. 3) Magazines (typeset) ………………… by computers. 4) When a particular program is run, the data (process) ………………… by the computer very rapidly. 5) Hard disks (use) ………………… for the permanent storage of information. 91 6) The drug-detecting test in the Tour de France (support) ………………… by computers. 7) All the activities of the computer system (coordinate) ………………… by the central processing unit. 8) In some modern systems information (hold) ………………… in optical disks. V. Quiz Work with a partner. Try to answer as many questions as possible. (Use the Glossary if you need to) 1) What name is given to the set of programs that interface between the user, the applications programs, and the computer? 2) What types of programs are designed for particular situations and specific purposes? 3) What does ‘MS-DOS’ stand for? 4) What is the basic DOS command for copying a file? 5) The Macintosh operating system is kept in various locations. Where exactly are these? 6) Can you give synonym for the term ‘routine’? 7) What is the abbreviation for ‘International Business Machines’? 8) Which company developed UNIX? 9) Which programming language allows you to play animations on the Web? 10) What are the effects of computer viruses? 92 Lesson 2. The graphical user interface I. A user-friendly interface The picture below illustrates a user interface based on graphics. Read the definitions in the HELP box and then match with the concept in the right column: The interface elements of the Windows XP HELP box a. Is an area of the computer screen where you can see the contents of a folder, a file, or a program. Some systems 1. window 2. menu allow several windows on the screen at the same time and windows can overlap each other. The window on the top is 3. pointer the one which is ‘active’, the one in use. 4. icons b. Are small picture on the screen. They present programs, 5. folders folders, or files. For example, the Recycle Bin icon represents a program for deleting and restoring files. Most systems have a special area of the screen on which icons appear. c. Give the user a list if choice. You operate the menu by pressing and releasing one or more buttons on the mouse. d. Is the arrow you use to select icons or to choose options from a menu. You move the pointer across the screen with the mouse. Then you click a button on the mouse to use the object selected by the pointer. e. Containers for documents and applications, similar to the subdirectories of a PC platform. 93 II. Reading A. Read the article below and decide which of the expressions in the box best describe a graphical user interface (GUI). user-friendly slow text-based complex graphics-based attractive GUIs The terms user-interface refers to the standard procedures the user applications with a high level of consistency. follows to interact with a particular computer. Today, the most innovative GUIs are the Macintosh, Microsoft A good user interface is important Windows, and IBM OS/2 Warp. because when you buy a program you These three platforms include similar want to use it easily. Moreover, a features: graphical user interface saves a lot of windows, time: you don’t need to memorize selector, a file finder, a control panel commands in order to execute an and various desk accessories. Double application; you only have to point clicking a folder opens a window and click so that its content appears on which contains programs, documents, the screen. or further nested folders. At any time a desktop and with folders, a icons, printer Macintosh computers – with a user within a folder, you can launch the interface based on graphics and desired program or document by intuitive tools – were designed with a double-clicking the icon or you can single drag it to another location. clear aim: to facilitate interaction with the computer. Their interface is called WIMP: Window, The three platforms differ in other Icon, Mouse, and Pointer, and areas such as device installation, software products for the Macintosh network connectivity, or compatibility have been designed to take full with application programs. advantage of its features using this These interfaces have been so interface. In addition, the ROM chips successful because they are extremely of a Macintosh contain libraries that easy to use. It is well known that provide program developers with computers running under an attractive routines windows, interface stimulate users to be more dialog boxes, icons, and pop-up creative and produce high quality menus. This ensures the creation of results, which has a major impact on for generating the general public. 94 B. Look at the text again and guess the meaning of the words in bold and italics in your own language. C. Find answers to these questions. 1) What does the abbreviation ‘GUI’ stand for? 2) What is the contribution of Macintosh computers to the development of graphic environments? 3) What does the acronym ‘WIMP’ mean? 4) What computing environments based on graphics are mentioned in the text? 5) How do you run a program on a computer with a graphical interface? 6) Can you give two reasons for the importance of user-friendly interfaces? III. Exercise work Add to the statements (1-10) using the extra information (a-j). 1. A barcode is a pattern of a. it contains the main printed black lines electronic components. 2. A floppy is a disk b. it adds features to a computer 3. A mother is a printed circuit c. it is about the size of a board piece of paper. 4. A password is a secret set of d. supermarkets use them characters for pricing 5. A monitor is an output device e. it reads and writes to disks. 6. A disk drive is a unit f. it can hold 1.44Mb of data. 7. An expansion card is an g. it allows access to a electronic board computer system 8. A CD-ROM drive is a common h. it controls all the other storage device boards in a computer 9. A notebook is a portable i. it displays data on a computer screen. 95 IV. 10. The system unit is the main j. it read data from a part of the computer CD_ROM disk Language work: Short relative clauses We can join these sentences by using a relative clause. 1) Her house has a network. 2) It allows basic file-sharing and multi-player gaming. 1) + 2) Her house has a network which allows basic file-sharing and multi-player gaming. Relative clauses with certain active verbs can be shortened by omitting the relative word and changing the verb to its ‘-ing’ form. We can shorten the relative clause like this: Her house has a network allowing basic file-sharing and multi-player gaming. Note how these two sentences are joined by a relative clause. 3) The technology is here today. 4) The technology is needed to set up a home network. 3) + 4) The technology which is needed to set up a home network is here today. Relative clauses like this with passive verbs can be shortened by omitting the relative word and the verb ‘to be’. The technology needed to set up a home network is here today. Now link each group of sentences into one sentence using short relative clause. 1 2 3 4 5 6 a The technology is here today. b It is needed to set up a home network. a You only need one network printer. b It is connected to the server. a Her house has a network. b It allows basic file-sharing and multi-player gaming. a There is a line receiver in the living room. b It delivers home entertainment audio to speakers. a Eve has designed a site. b It is dedicated to dance. a She has built in links. 96 7 b They connect her site to other dance sites. a She created the site using a program called Netscape Composer. 8 b It is contained in Netscape Communicator. a At the centre of France Telecom’s home of tomorrow is a network. 9 b It is accessed through a Palm Pilot-style control pad. a The network can simulate the owner’s presence. b This makes sure vital tasks are carried out in her absence. 10 a The house has an electronic door-keeper. b It is programmed to recognize you. c This gives access to family only. Using short relative clauses is one way of reducing sentences. Other ways of reducing sentences are: Taking out relative pronouns where possible e.g. The software (that) we bought last year. Omitting qualifying words (adjectives, or modifying adverbs) e.g. (quite) complex/(very) similar Taking out that in reported speech or thoughts e.g. It is well known (that) computers… I think (that) there’s something wrong with this program. Cutting out unnecessary phrases e.g. Macintosh computers were designed with a clear aim: to facilitate the user’s interaction with the computer. = Macintosh computers were designed to facilitate the user’s interaction with the computer. V. Writing Summarize the text in Task 2 in 70 – 75 words. You may like to follow these steps. 1. Read through the whole text again and think of a suitable title for it. 2. Make sure you understand all the main points. Go through the text and underline the relevant information in each paragraph. 3. Make notes about the main points: Omit repetitions and unnecessary phrases Leave out details, such as examples 97 E.g. notes on the first paragraph: In the past, only experts used computers. But now, emphasis on user-friendly interfaces. 4. Make sentences from the notes and connect the sentences by using linking words (and, but, also, because, that’s why, in fact, therefore, etc.) Write your first draft. 5. Improve your first draft by reducing sentences. 6. Check grammar, spelling, and punctuation. Write the final version of your summary. 98 Lesson 3. Spreadsheets I. Looking at a spreadsheet Look at this spreadsheet and try to answer the questions. 1 What is a spreadsheet? What is it used for? 2 In a spreadsheet, there are ‘columns’, ‘rows’, and ‘cells’. Give an example of each from the sample spreadsheet. This sample spreadsheet shows the income and expenses of a company. Amounts are 3 What type of information can given in $ millions be keyed into a cell? 4 What will happen if you change the value of a cell? II. Reading Read the text below and decide whether these sentences are right (√) or wrong (X) 1) A spreadsheet program displays information in the form of a table, with a lot of columns and rows. 2) In a spreadsheet, you can only enter numbers and formulas. 3) In a spreadsheet you cannot change the width of the columns. 4) Spreadsheet programs can produce visual representations in the form of pie charts. 5) Spreadsheets cannot be used as databases. A spreadsheet program is normally number. The point where a column used in business for financial planning and a row intersect is called a cell. For – to keep a record of accounts, to example, you can have cells A1, B6, analyze budgets or to make specific C5, and so on. calculations. It’s like a large piece of paper divided into columns and rows. Each column is labeled with a letter and each row is labeled with a A cell can hold three types of information: text, numbers and formulas. For example, in the sample spreadsheet, the word sales has been 99 keyed into cell A2 and the values 890, change in one worksheet the same 478 and 182 have been entered into change cells B2, B3, and B4 respectively. So worksheet. is made in the other when the formula ‘B2 + B3 + B4’ is The format menu in a spreadsheet keyed into cell B5 the program usually includes several commands automatically calculates and displays allowing you to choose the font, the result. number alignment, borders, column Formulas are functions or operations that add, subtract, multiply or divide existing values to produce new values. We can use them to calculate totals, percentages or When you change the value of one cell, the values in other cells are automatically recalculated. You can update the information in different worksheets by linking cells. This means that when you make a III. Most spreadsheet programs can generate documents with graphic representations and some include three-dimensional options. The values of cells are shown in different ways discounts. also width and so on. such as line graphs, bar, or pie charts. Some programs also have a database facility which transforms the values of the cells into a database. In this case, each column is a field and each row is a record. Vocabulary Match the terms in the box with the explanations below. a. formul b. cell c. sales d. payroll e. shares f. revenue g. interest h. expenses 1) A sum of money that is charged or paid as a percentage of a larger sum of money which has been borrowed or invested, e.g. High rates./ 7 percent ~ on a loan. 2) The intersection of a column and a row in a spreadsheet, e.g. the ~ B2. 3) The quantity sold, e.g. The ~ of PCs rose by 10 percent last year. 4) The income – or money – received by a company or organization, e.g. The annual ~ of this multinational company is… 5) A ~ in a company is one of the equal parts into which the capital of the company is divided, entitling the holder of the ~ to a proportion of the benefits, e.g. £10 ~s are now worth £11 6) Financial costs; amounts of money spent, e.g. Travelling ~. 100 7) A function or operation that produces a new value as the result of adding, subtracting, multiplying, or dividing existing values, e.g. If we enter the ~ B5-B10, the program calculates … 8) 1 A list of people to be paid and the amount due to each. 2 Wages or salaries paid to employees, e.g. He was on the company’s ~. IV. Language work: Prepositions of place A. Study these examples of prepositions of place. 1 Data moves between the CPU and RAM. 2 Data flows from ROM to the CPU. 3 A program is read from disk into memory. 4 Data is transferred along the data bus. 5 The address number is put onto the address bus. 6 The hard disk drive is inside a sealed case. 7 Heads move across the disk. 8 Tracks are divided into sectors. B. Now complete each sentence using the correct preposition. 1) The CPU is a large chip ………. the computer 2) Data always flows ………. the CPU ………. the address bus. 3) The CPU can be divided ………. three parts. 4) Data flows ………. the CPU and memory. 5) Peripherals are devices ………. T he computer but linked ………. it. 101 6) The signal moves ………. the VDU screen ………. one side ………. the other. 7) The CPU puts the address ………. the address bus. 8) The CPU can fetch data ………. memory ………. the data bus. V. Graphic representation A. Look at the graph below and, with the help of a partner, check that it is an exact visual representation of the spreadsheet in Task 1. B. Can you calculate the net profits of this firm during the period 1997-98? C. What type of image is this: a pie chart, a bar chart, an area graph, or a line graph? D. What is the advantage, if any, of displaying information as a graph, rather than as a spreadsheet? VI. Extension A. Spreadsheet programs are also used to make out invoices. Look at the invoice below and fill in the blanks with the right words from the box. Quantity Description Price VAT (Value Added Tax) Reference TOTAL Address Company 102 B. Have you got a spreadsheet program at work or school? If so, try to produce a similar invoice. 103 Lesson 4. Databases I. Warm-up Companies often use databases to store information about customers, suppliers and their own personnel. Study the illustrations and then try to answer these questions. 1) What is a database? 2) Which tasks can be performed by using a database? Make a list of possible applications. 3) What do the terms mean in your language: file, record, field? Name: James Powell Address: 12, Back St. Marital status: single Identification 8994989 Home phone: 456367 Job ENGINEER Department: Data processing SALARY £18,750 Commission: £18,750 II. Reading A. Here is a part of an article about databases. First, read all the way through and underline the basic features of a database. Basic features of database programs With a database, you can store, For example, a record about an organize, and retrieve a large collection employee of related information on computer. If several fields which give their you like, it is the electronic equivalent name, of an indexed filing cabinet. Let us look number, age, salary, and length at some features and applications. of Information is entered on a database via fields. Each field holds a separate piece of information, and the fields are collected together into records. might address, employment consist of telephone with the company. Records are grouped together into files which hold large amounts of information. Files can easily be updated: you can always change fields, add new records, or delete old ones. 104 With the right database software, records can be automatically sorted into you are able to keep track of numerical or alphabetical order using stock, any field. sales, market trends, orders, invoices, and many more details that can make our company successful. Another feature The best packages also include networking facilities, which add a new dimension of database of productivity to businesses. For example, managers of can different departments can have direct automatically look up and find access to a common database, which records particular represents an enormous advantage. information. You can also search Thanks to security devices, you can on more than one field at a time. share part of your files on a network For example, if a managing and control who sees the information. director wanted to know all the Most aspects of the program can be customers that spend more than protected by user-defined passwords. £7,000 per month, the program For example, if you wanted to share an would search on the name field employee’s personal details, but not and their commission, you could protect the programs is that you containing the money field commission field. simultaneously. A computer database is much faster In short, a database manager helps to consult and update than a card index you control the data you have at home, system. It occupies a lot less space, and in the library or in your business. B. Now make a list of the words you don’t understand. Can you guess their meaning? Compare your ideas with other students. C. Using the information in the text, complete these statements. 1) A database is used to …………..……….……………...………….. 2) Information is entered on a database via ……………...…………… 3) Each field holds ……………………………………………………. 4) ‘Updating’ a file means ………………………………………… 5) The advantages of a database program over a manual filing system are … 6) Access to a common database can be protected by using ……………… III. Puzzle Complete the sentences by using a term from the list. Then write the words in the crossword to find the hidden message. database field layout merging 105 record sorted updated 1. In order to personalize a standard letter, you can use ‘mail …………….’ (a technique which consists of combining a database with a document made with a word processor). 2. Records can be automatically ……………. into any order. 3. You can decide how many fields you want to have on a ……………. 4. Files can easily be ……………. by adding new information or deleting the old one. 5. A ……………. program can be used to store, organize and retrieve information of any kind. 6. The ……………. of the records can be designed by the user. Each piece of information is given in a separate ……………. . IV. Language work Requirements: Need to, have to, must, be + essential, critical Note how we describe We can also treat need as a requirements of particular modal verb and use the jobs: negative form needn’t: 1. You need to be able to empathise with the person at the other end of the phone. 2. IT managers have to take responsibility for budgets. 3. You must be interested in your subject. 4. You must have worked for at least two years in systems analysis. 7. You needn’t have a degree in computing science. Have to is an ordinary verb. Its negative form is made in the usual way: 8. You don’t have to be an expert in everything. Mustn’t has a quite different meaning. It means it is important not to do 106 5. Experience with mainframes is something. It is used for essential/ critical. warning, rules, and strong advice. For example: We can describe things which are not requirements like 9. You mustn’t make unauthorized copies of software. this: 6. You don’t need to have a degree in computing science. A. Now fill in the blanks with the appropriate form of the verbs, need to, have to, and must, to make sensible statements. More than one answer is possible in some examples. 1) Technical qualifications ………….. to be renewed at intervals to ensure they do not go out of date. 2) You ………….. become an expert in too narrow a field. 3) You ………….. to have good communication skills to become an IT Manager. 4) You ………….. be an expert in hardware to become a programmer. 5) You ………….. have worked with IBM mainframes for at least two years. 6) You ………….. be able to show leadership. 7) You ………….. have a degree but it ………….. be in computing science 8) You ………….. to have experience in JavaScript 9) You ………….. be able to use C++ 10) These days you ………….. study BASIC B. Study these requirements for different jobs in computing advertised on the Internet. Then describe the requirements using the methods studied in this unit. Systems Manager/ Support Analyst: Programmer IBM Mainframe MVS Technical specialist Min. 2 yrs work IBM MVS support technician Programmer 3 yrs exp. SAP Basic Technical 1 yr exp. of VTAM, Environment in systems NCP, SSP, NPM, Team player with programming IBM 3745-900 strong analytical and 107 Plus exp. of Netview/ automation hardware Authorized to work in the EU design & support problem-solving skills Ability to communicate issues and solutions and manage time effectively Webmaster Strong Unix experience Cisco Technician CCNA qualified Excellent skills in the Able to use surrounding HTML, technologies DHTML, and JavaScript Knowledge of Min. 2 yrs work in support IS Manager Knowledge of NT and Netware Experience of ERP systems implementation Very strong managerial skills Shell Scripts V. Writing Imagine that you are Barry Stephens, the sales manager of Sunrise Computer. Write a standard letter to your clients about ‘New software products on the market’, and offer them a free demonstration disk. 108 MODULE 5. FACES OF THE INTERNET Lesson 1. The internet and email I. Internet basics A. In pairs, discuss how you would define the Internet B. Make a list of all the things you can use the Internet for II. Internet FAQs A. Read Part 1 of the internet FAQs and choose the correct answers 1) The internet was a. Invented in the mid-90s b. Popular in the 1960s c. Probably created in the USA 2) Which term describes any fast, high-bandwidth connection? a. Broadband b. Dial-up connection c. Wi-Fi connection 3) The power-line internet provides broadband access through a. Telephone lines b. Satellites c. Electrical power lines 4) Which device converts computer data into a form that can be transmitted over phone lines? a. ADSL b. A mobile phone c. A modem 5) The standard protocol that allows computers to communication over the Internet is called a. An IP address b. TCP/IP c. HTTP 6) The geographical region covered by one or several access points is called a a. Wireless access point b. Hotspot c. Wireless network device. 109 Internet FAQs: Part 1 How old is the Internet (the Net)? When was it created? It’s hard to say exactly. The research that led to what we now know as the Internet was begun in the 1960s Who created the Internet? Again, it’s hard to say exactly who created it. The initial research was carried out by the Advanced Research Projects Agency in America, funded by the US government. Did the Internet become popular quickly? It took many years for the Internet to become popular around the world. It’s only really since the mid-90s that the Internet has been a part of our daily lives. How do you get online? To get connected, you need a computer, the right connection Software and a modem connected to the phone line. You also need an account with an Internet Service Provider (ISP), which acts a gateway between your PC and the rest of the Net. How fast are today’s internet connections? Today, ISPs offer a broadband, high-speed connection. The most common types are cable-offered by local cable TV companies-and ADSL (Asymmetric Digital Subscriber Line), which works through phone lines. They are both faster than the traditional dial-up telephone connection. Broadband access is also offered by some electricity networks. This connection technology, known as power-line Internet, provides low-cost access via the power plug, but is still in development. How long has broadband existed? Since the late 1990s. How much does broadband access cost? It depends on which company you choose. Nowadays, some companies even offer free broadband. Why do you need a modem? A modem (modulator/demodulator) converts digital signals into analogue signals so that data can be transmitted across the phone or cable network. What does TCP/IP mean? The language used for data transfer on the Internet is known as TCP/IP (transmission control protocol/ Internet Protocol). This is like the internet 110 operating system. Every computer connected to the Net is identified by a unique IP address. Are there other ways of accessing the Internet? Other methods of internet access include Wi-Fi, satellite, mobile phones and TV set equipped with a modem, Wi-Fi-enabled laptops or PDAs allow you to connect to the Net if you are near a wireless access point, in locations called hotspots (for example, a Wi-Fi café, pack or campus). Satellite services are used in places where terrestrial access is not available (for example, on ships at sea). High-end mobile phones provide access through the phone network. B. In pairs, discuss which of the internet systems (1-6) you would use to do the tasks (a-f). then read Part 2 of the FQAs and check your answers 1. Email a. Transfer files from the Internet to your hard drive 2. The Web b. Send a message to another person via the Internet 3. Newsgroups c. Have a live conversation (usually typed) online 4. Chat and IM d. Connect to a remote computer by entering instructions, and run a program on it 5. FTP e. Take part in public discussion areas devoted to specific topics 6. Telnet f. Download and view documents published on the Internet Internet FAQs: Part 2 Email Email lets you exchange messages with people all over the world. Optional attached files can include text, pictures and even audio and animation. A mailing list uses email to communicate messages to all its subscribes – that is, everyone that belongs to the list. Which email program is the best? Outlook Express is a popular program, but many users use web-based email accounts such as Hotmail. The web The Web consists of billions of document living on web servers that use the HTTP protocol. You navigate through the Web using a program called a web browser, which lets you search, view and print web pages. How often are web pages updated? It depends entirely on the page. Some are updated thousands of times a day. 111 Chat and Instant Messaging (IM) Chat and Instant Messaging technologies allow you to have real-time conversations online, by typing messages at the keyboard. FTP FTP, of file transfer protocol, is used to transfer files over a TCP/IP network. Nowadays, this feature is built into Web browsers. You can download programs, games and music files from a remote computer to your hard drive. Telnet Telnet is a protocol and a program used to log onto remote computer systems. It enables you to enter commands that will be executed as if you were entering them directly on the remote server. Newsgroups Newsgroups are the public discussion areas which make up a system called Usenet. The contents are contributed by people who post articles or respond to articles, creating chains of related postings called message threads. You need a newsreader to subscribe to newsgroups and to read and post messages. The newsreader may be a stand-alone program or part of a web browser. How many newsgroups are there? There are approximately 30,000 active newsgroups. Where can you find newsgroups? Your newsreader may allow you to download the newsgroup addresses that your ISP has included on its news server. An alternative to using a newsreader is to visit web forums instead, which perform the same function but without the addition software. C. Find words and phrases in part 2 with following meanings 1) A system used to distribute email to many different subscribers at once (in Email paragraph) 2) A program used for displaying web pages (in The Web paragraph) 3) To connect to a computer by typing your username and password (in Telnet paragraph) 4) A series of interrelated messages on a given topic (in Newsgroups paragraph) 5) A program for reading Usenet newsgroups (in Newsgroups paragraph) III. Language work: questions 112 A. Look at the HELP box and then make a question about Sue Clarke for each of her answers 1) ……………………………………….. I’m 23 years old 2) ……………………………………….. I’m an online researcher 3) ………………………………………. I use the Internet to find information Sue Clarke requested by clients 4) ……………………………………….. I’ve been doing this job for six months 5) ………………………………………… I graduated from university in 2006 HELP box Place Questions Where can you find newsgroups? In questions, we normally place the Time auxiliary verb before the subject. When was it created? Are there other ways of accessing the How often are web pages updated? How long has broadband existed? Internet? If there is no other auxiliary, we use Reason do/does (present simple) or did (past Why do you need a modem? Quantity simple) Did Internet become popular How much does broadband access cost? quickly? How many newsgroups are there? There are many question words in Manner English which we use to find out How do you get online? more information than just yes or no Others People How Who created the Internet? connections? Things How old is the Internet? fast are today’s internet What does TCP/IP mean? Which email program is the best? B. In pairs, make questions using these prompts. Then practice asking and answering the questions. 113 Example: When / first / use the Internet when did you first use the Internet? 1) What type of internet connection / have at home? 2) How fast/ your internet connection? 3) How much / pay for broadband access? 4) How often/ access the internet? 5) Which email program/use? 6) Who/ send email to? 7) Do / use you mobile phone to access the Internet? 8) Do / use the internet in public spaces using Wi-Fi? 9) Do/ play games online? 10) How many newsgroups / subscribe to? 114 Lesson 2. The web I. A typical web page Read the text and label the features on the screenshot with the terms in bold A typical web page At the top of the pages is the URL address. Uniform you can refresh the current page, Resource Locator – the address of a file meaning the page reloads (downloads on the Internet. A typical URL look like again). If you want to mark a website this http://www.24h.com.vn/abc address so that you can easily revisit the In URL this means updates. When a web page won’t load, URL, means page at a later time, you can add it to Hypertext Transfer protocol and tells your favorites, or bookmark it. When the program to look for a web page. you want to visit it again you simply www click show favorites. mean world http:// wide web. 24h.com.vn is the domain name of the On the web page itself, most sites server that hosts the website – a feature clickable image links and company based in Vietnamese; other clickable hypertext links. Together, top-level .com these are known as hyperlinks and take (commercial site), .edu (education), you to other web pages when clicked. domains are .org (organization) or .net (network); abc is the directory path where the web page is located. The parts of the URL are separated by . (dot), / (slash) and : (colon). Some sites begin ftp://, a file transfer protocol used to copy files from one computer to another. The toolbar shows all the navigation icons, which let you go back one page or go forward one page. You can also go to the home page or stop the current transfer when the circuits are busy Tab buttons let you view different sites at the same time, and the built-in search box helps you look for information. If the feed button lights up, it means the site offers RSS feeds, so you can automatically receive 115 II. Language work: collocations 2 A. Look at the HELP box and then match the words on the left (1-6) with the words on the right (a-f) to make collocations. There may be more than one possible answer. 1. Online a. friends 2. Take b. photos 3. Email c. action 4. Upload d. website 5. Portable e. encyclopedia 6. official f. player B. In pairs, make sentences using the collocations above. C. Find the collocations in these sentences and say what type they are 1) Once you are online, you can browse the Web, visit chat rooms or send and receive emails. 2) Instant messaging can be a great way to communicate with friends. 3) This software may not be fully compatible with older operating systems. 4) Most webcam plug into a USB port. 5) This highly addictive game will keep you playing for hours 6) Companies are starting to use virtual reality on their websites. Adverb + adjective HELP box Collocations 2 Highly sensitive information A collocation is a pair or group of Freely available on the Web words that are often used together. Adjective + noun For example, we say make phone call, Mathematical formulas not do phone calls. Up-to-date information Here are some common types of The world online often collocates collocation with other words and can function as Verb + noun adjective or adverb. Surf the Web Adjective: They post opinions on Download music online journals Verb + particle Adverb: a podcast is an audio Hack into a computer recording posted online. Log onto a bank account D. Complete the extracts with words from the box Authorization Fake Internet auction Shopping cart 116 Browse Login steal 1) Occasionally I also buy things on………….sites such as eBay where people offer and sell things to the highest bidder. 2) First you enter a site dedicated to e-commerce and…………..their products 3) Then you put the items you want to buy into a virtual…………-a program that lets you select the products and buy with a credit card 4) You may have to……….with a username and a password… 5) …for some transactions, you will be required to use a TAN, a transaction………number 6) Be aware of phishing – you may receive………….emails claiming to be from your bank and asking for personal information or account details in an attempt to……….you identity. III. Language work: the prefixes e- and cyberLook at the HELP box and then complete these sentences 1 A………….is an employee who uses his company’s internet connection during work hours to chat with friends, play games, etc. 2 An ……….is a postcard sent via the Internet 3 An……….is a small magazine or newsletter published online 4 In a…………..you can use computers with internet access for a fee 5 Examples of……….include internet fraud, digital piracy, theft of confidential information, etc. 6 In the future, all elections will be carried out using……… 7 You can now sign legal documents online using an……………. 8 ……………will revolutionize way we take exams the HELP box The prefixes e- and cyber The e- prefix means electronic and we add it to activities that take place on computers or online, for example e-business/e-commerce – business conducted over the Internet. Other example include; e-card, e-learning, e-zine, e-voting, e-signature, eassessment, e-cash, e-book and epal. There are often spelling variations, with or without a hyphen, so always check your dictionary. The cyber- prefix comes from cybernetics, and we use it to describe things related to computer networks, for example cybercafé – an internet café. Other cybercrime, examples include: cyberculture, cyberslacker and cyberspace 117 9 ………..can be used on some websites instead of real money to make purchases. It reduces the risk of fraud. 10 An………………. is like the paper version, but in digital form. 118 IV. What do you use the Web for? In pairs, discuss these questions. Give reasons for your answers. 1 what is your favorites search engine to find information on the Web? Why? 2 Do you download music or video clips from the Web? Do you pay for them? 3 Do you buy things online? Is it better to buy online or go to a shop? 4 Have you ever listened to the radio or watched TV online? 5 Do you use the Web to do school/university assignments or projects? How? 119 Lesson 3. Internet security I. On alert A. In pair, discuss these questions. 2) What is a hacker? 3) How easy do you think it is to infiltrate the Internet and teal sensitive information? 4) How can you protect your computer from viruses and spyware? A. Match the captions (1-4) with the pictures (a-d) 1 A secure website can be recognized in two ways: the address bar shows the letters https and a closed padlock or key is displayed at the bottom of the screen. 2 You have to type your username and password to access a locked computer system 3 This program displays a message when it detects spyware and other unwanted software that may compromise your privacy or damage your computer. 4 Private networks use a software and/or hardware mechanism called a firewall to block unauthorized traffic from the Internet. a……………. c……….. b………… d……………. 120 II. Security and privacy on the Internet A. Read the text quickly and see how many of your ideas from 1A Question are mentioned B. Read the text more carefully and answers these questions. 1) Why is security so important on the Internet? 2) What security features are offered by Mozilla Firefox? 3) What security protocol is used by banks to make online transactions secure? 4) How can we protect our email and keep it private? 5) What methods are used by companies to make internal networks secure? 6) In what ways can a virus enter a computer system? 7) How does a worm spread itself? Security and privacy on the Internet There are many benefits from an cookies – small files placed on your open system like the Internet, but one hard drive by web servers so that they of the risks is that we are exposed to can recognize your PC when you hackers, who break into computer return to their site. systems just for fun, to steal If you use online banking services, information, or to spread viruses. So make how do we go about making our certificates – files that are like digital online transactions secures? identification cards and that identify Security on the Web users and web servers. Also be sure to Security is crucial when you send confidential information online. sure they use digital use a browser that is compliant with SSL (Secure Consider, for example, the process of protocol which buying a book on the Web. You have transactions. to type your credit card number into Email privacy Socket Layer), provides a secure an order form which passes from Similarly, as you email travels computer to computer on its way to across the Net, it is copied temporarily the online bookstore. If one of the onto many computers in between. intermediary computers is infiltrated This means that it can be read by by hackers, your data can be copied. people who illegally enter computer To avoid risks, you should set all systems. security alerts to high on your web The only way to protect a message browser. Mozilla Firefox displays a is to put it in a sort of virtual envelope lock when the website is secure and – that is, to encode it with some form allows you to disable or delete of encryption. A system designed to 121 send email privately is Pretty Good disc drive – if you insert an infected privacy, a freeware program written disc – or via the Internet. A worm is a by Phil Zimmerman. self-copying program that spreads Network security through email attachments; it Private networks can be attacked replicates itself and sends a copy to by intruder who attempt to obtain everyone in an address book. A information such as Social Security Trojan horse is disguised as a useful numbers, bank accounts or research program; it may affect data security. and business reports. To protect Spyware collects information from crucial data, companies hire security your PC without your consent. Most consultants who analyze the risks and spyware and adware (software that provide solutions. The most common allows methods of protection are passwords advertisements that suddenly appear for access control, fire walls, and on your screen) is included with encryption and decryption systems. “free” downloads. pup-ups- that is, Encryption changes data into a secret If you want to protect your PC, code so that only someone with a key don’t open mail attachments from can read it. Decryption converts strangers encrypted data back into its original downloading files from the Web. form. Remember to update your anti-virus Malware protection software as often as possible, since Malware (malicious software) are programs designed to infiltrate or and take care when new viruses are being created all the time. damage your computer, for example viruses, worms, Trojans and spyware. A virus can enter a PC via a III. The history of hacking A. Read Part 1 of the text and answer these questions. 1) Which hacking case inspired the film War Games? 2) When did Captain Zap hack into the Pentagon? 3) Why was Nicholas Whitely arrested in 1988 4) How old was the hacker that broke into the US defense computer in 1982? The history of hacking – Part 1 1971- John Draper discovered that a whistle offered in boxes of Cap’n Crunch breakfast cereal perfectly generated the 2,600Hz signal 122 used by the AT&T phone company. He started to make free calls. He was arrested in 1972 but wasn’t sent to prison 1974- Kevin Mitnick, a legend among hackers, began hacking into banking networks and altering the credit reports of his enemies. He didn’t expect that his most famous exploit – hacking into the North American Defense Command in Colorado Springs – would inspire the film War Games in 1983 1981- Ian Murphy, a 23-year – old know as Captain Zap on the networks, hacked into the White House and the Pentagon 1987- The IBM international network was paralyzed a hacker’s Christmas message. 1988- The Union Bank of Switzerland almost lost £32 million to hackers. Nicholas Whitely was arrested in connection with virus spreading. 1989- A fifteen-year-old hacker creaked the US defense computer 1991- Kevin Poulsen, known as Dark Dante on the network, was accused of stealing military files. B. In pairs, discuss which of the cases in part 1 you had heard of. Which do you think is the most important? IV. Language work: the past simple A. Look at the HELP box and then complete Part 2 of the text with the past simple form of the verbs in the box show spread steal launch attempt overwrite be infect affect The history of hacking – Part 2 1992- David L Smith (1)…………..prosecuted for writing the Melissa virus, which was passed in Word files sent via mail 1997- The German hacker Chaos Computer Club (2)………… on TV how to obtain money from bank accounts 2000- A Russian hacker (3)………… to extort $100,000 from online music retailer CD Universe. A Canada hacker (4)………… a massive denial of service attack against website like Yahoo! And Amazon. The ILoveYou virus, cleverly disguised as a love letter, (5)………… so quickly that email had to be shut down in many companies. The worm (6)………. Image and sound files with a 123 copy of itself. 2001- The Code Red worm (7)………. Tens of thousands of machines 2006- Hackers (8)………….the credit card details of almost 20,000 AT&T online customers. However, subscribers to its services (9) (not)…………. HELP box Past simple We use the past simple to talk There are many verbs which are irregular in the past simple about a complete action or event Kevin Mitnick began hacking into… which happened at a specific time in the past We form questions and negatives for irregular verbs in the same way as We form the past simple of for regular verbs. The exception is be regular verbs by adding –(e)d to When did Kevin Mitnick begin the infinitive hacking into…? John Draper discovered that a He didn’t begin hacking until 1974 We form the past passive with the whistle… We form questions and negatives using did/didn’t past simple of be + the past participle When did Captain Zap hack into IBM international was paralyzed by the Pentagon? hackers. He didn’t expect that his most He wasn’t sent to prison famous exploit… Why was Nicholas Whitely arrested in 1998? B. Read these landmarks in the history of the Internet and prepare at least five questions in the past simple Example: what happened in 1969? What did Ray Tomlinson do in 1971? 1969- The US Defense Department establishes ARPANET, a network connecting research centre 1971- Ray Tomlison of BBN invents an email program to send message across a network. The @ sign is chosen for its at meaning 1981- IBM sells the first IBM PC, BITNET provides email and file transfers to universities 1982- TCP/IP is adopted as the standard language of the Internet 1988- Jarkko Oikarinen develops the system known as Internet Relay Chat (IRC) 124 1991- CERN creates the World Wide Web. 1998- Online banking, e-commerce and MP3 music become popular 2001- Napster, whose software allows users to share downloaded music, maintains that it does not perpetrate or encourage music piracy. However, a judge rules that Napster’s technology is an infringement of music copyright 2004- Network Solution begins offering 100-year domain registration 2006- Americans spend over $100 billion shopping online C. In pairs, ask and answer your questions V. Internet issues A. In small groups, look at the list of cybercrimes and discuss these questions 1) Which crimes are the most dangerous? 2) Is it fair or unfair to pay for the songs, videos, books or articles that you download? Should copyright infringement be allowed online? 3) What measures can be taken by governments to stop cybercrime? 4) Do you think governments have the right to censor material on the Internet 5) Personal information such as our address, salary, and civil and criminal records is held in databases by marketing companies. Is our privacy in danger? Cybercrimes Piracy – the illegal copy and distribution of copyrighted software, games or music files Plagiarism and theft of intellectual property – pretending that someone else’s work is your own Spreading of malicious software Phishing (password harvesting fishing) – getting passwords for online bank accounts or credit card numbers by using emails that look like they are from real organizations, but are in fact fake; people believe the message is from their bank and send their security details. IP spoofing – making one computer look like another in order to gain unauthorized access Cyberstalking – online harassment or abuse, mainly in chat rooms or newsgroups Distribution of indecent or offensive material 125 B. Write a summary of your discussion on PowerPoint and present it to the rest of the class 126 MODULE 6. CREATIVE SOFTWARE Learning objectives In this module, you will learn how to: Identify the functions of different graphics tools Understand specific aspects of desktop publishing and multimedia applications Write a letter to a newspaper asking for information about the hardware and page-layout software used for its production 127 Lesson 1. Multimedia I. Multimedia is here! Look at the cover for Encarta ’05. What types of data are integrated in multimedia applications? II. Reading A. Read the texts and match them with the headings in the box below. Sound, Music, MIDI CD-ROM titles full of pictures, action and sound! The potential of using multimedia CD-ROM is more than just heavy metal Multimedia magic! 7. …………………………… Until now, multimedia applications have been used mainly in the fields of information, training, and entertainment. For example, some museums, banks, and estate agents have information kiosks that use multimedia. Several companies produce training programs on optical disks, and marketing managers use presentation packages (like Microsoft PowerPoint or Lotus Freelance Graphics for Windows) to make business presentations. They have all found that moving images, sound, and music involve viewers emotionally as well as inform them, and make their message more memorable. 8. …………………………… Sound is an important component of the multimedia approach. The effective use of sound can be used to grab the attention of the participant, set the mood, or underscore a point. The most popular way of delivering sound is the hardware soundboard. Such boards offer two important capabilities. The first of these is a built-in stereo synthesizer complete with a built-in audio amplifier. Just connect a set of speakers and you’ve got instant sound, music and speech capabilities. The second capability is the musical instrument digital interface, or MIDI. This is a specialized serial interface that allows an electronic musical instrument to communicate with other MIDI-equipped instruments or PCs. 128 CD-ROM is popular 9. ………………………….. Between 80 and 90 percent of all multimedia applications are distributed on CD-ROM, some just on CD, some on several media (as with Autodesk’s Multimedia Explorer, which comes with both a CD-ROM and diskettes). The reason for CD-ROM’s popularity in multimedia is simple – a single CD can contain 650 MB of data. That’s over 500 floppy disks’ worth of programs, sound, and graphics. The newest CD-ROM standard, CD-ROM XA (for eXtended Architecture) uses data compression to fit even more on these shiny discs. Many XA drives are also compatible with Kodak’s PhotoCD technology, which digitizes photographs and places them on a CD-ROM. 10.……………………….. Electronic encyclopedias integrate text, pictures, and sound, and usually have a video section with a full motion video window. The Compton’s Encyclopedia enables you to read about whales, look at photos of whales, listen to whale songs, and view an animated sequence showing whale movements through the ocean. Similarly, the Grolier Encyclopedia lets you read about birds, view pictures of birds, and listen to recordings of their songs. Other CD-ROMs include dictionaries, guides, and courses about history, science, the human body, cinema, literature, foreign languages, etc. For example, Cinemania from Microsoft has information on thousands of films and photographs, reviews, biographies and dialogues from films. (Section 2 and 3 adapted from ‘Updating to multimedia’ in PC Upgrade, June 1993) B. Read the texts again and correct these statements. There is a technical mistake in each of them. 1) Multimedia applications do not use huge amounts of data. 2) You don’t need to have a soundboard on your PC to hear speech and music. 3) Most multimedia software is distributed on magnetic disks. 4) Kodak’s PhotoCD technology is not compatible with many CD-ROM drives. 129 5) There are no language courses available on CD-ROM D. Match these terms in the box with the explanations. b. Computer animation c. Video computing e. CD-ROM player f. Multimedia control panels d. MIDI interface 1) Small programs inside the OS designed to work with audio and video files. 2) A code for the exchange of information between PCs and musical instruments. 3) A drive used to handle CD-Rom disks. 4) Manipulating and showing moving images recorded with a video camera or captured from a TV or video recorder. 5) III. Images which move on the screen. Language work: If – clauses A. Conditional clauses When you want to talk about a possible situation and its consequences, you use a conditional sentence. Here, we examine two types of conditionals. First conditional (possible situation) If A happens, B will happen. (present + simple), (will + verb) E.g. If you click on the speaker icon, you’ll get a piece of dialogue from the movie. In the main clause, we can also have modal (can), an imperative, or a present tense verb. Second conditional (unlikely situation) If A happened, B would happen. (past simple), (would + verb) E.g. If I had the money, I would (I’d) invest in a multimedia upgrade kit. Other modals (could, should, might) may appear in the main clause. Read these sentences, then identify the tenses used in the if-clause and in the main clause. 1 If you upgrade your PC, you’ll be able to run multimedia applications. 2 If the marketing manager had a multimedia system, she could make more effective presentations. B. Put the verbs in brackets into the correct form. 130 1) If I (get) …………… a sound card, I’ll be able to create my own music with a MIDI. 2) If the system (have) …………… a SuperVGA card, we would obtain a better resolution. 3) You won’t be able to play CD-ROM disks if you (not have) …………… a CD-ROM drive. 4) If you (come) …………… to the annual computer exhibition, you could see the new Macs. 5) If I could afford it, I (buy) …………… a Multimedia PC C. Match the sentences in Column A with appropriate sentences from Column B. Then join each action and effect using an if-sentence. Column A 1 You press Print Screen Column B a screen 2 You press Ctrl + Alt + Del in Windows 98 you can drag it across the b it would speed up the computer 3 You added more memory c 4 You installed a modem d you would have more space at your desk 5 You used a better search engine 6 You forget to save regularly you may lose data e you would be able to connect to a telephone line 7 You hold down the mouse button over an icon f you can make a copy of the screen 8 You used an LCD display g you would find more relevant results h it displays a list of active programs D. Describe the consequences of these actions using an if-sentence. 1) you don’t virus-check floppies 2) there was a power cut while you were using your computer 3) you install a faster processor 4) you forgot your password 5) you press the delete key 131 6) you use search engine 7) you double-click on an icon 8) you use power-saving options IV. Multimedia on the Web Read the text and find: 1) the function of the extension that is usually added to a file name. 2) the language used to create the majority of text files on the Web. 3) the graphics interchange format created by CompuServe to compress images. 4) the small program (plug-in) that lets you hear audio recordings on the net. 5) the most popular video formats. 6) the format created by the Moving Picture Experts’ Group to capture, store and play back movies. 7) the extension for the files that can be decompressed with a program like Winzip. Recognizing file formats Web pages can contain different multimedia elements: text, graphics, sounds, video and animation. To identify the format or type of file, an extension (a threeletter suffix) is usually added to the file name when it’s saved on disk Text The most common text extensions are .txt, .pdf, .doc and .htm (or .html). Most of the text files that you find on the Web have the extension .htm, created with the hypertext markup language. Graphics Graphics on the Web can include pictures, photos, paintings, image-maps and buttons. The most common formats are .gif (a standard image format developed by CompuServe) and .jpg or .jpeg (created by the Joint Photographic Expert’s Group). Sounds The Internet is a great place to find and hear hit songs, movie soundtracks, and recorded interviews. The most common formats are these: .wav: wave files can be played with Sound Recorder included with Windows. 132 .ra or .ram: files generated by RealAudio, a plug-in you can download from the Web. Video and animation You can see cartoons and movie clips on the Web, but you need the appropriate software. Video files are usually stored in: .avi, .mov and .mpg (or .mpeg) formats. To view MPEG videos, you just need Video for Windows. However, to create high-quality movie clips, you need a dedicated MPEG expansion card. You can also find animation and 3-D worlds. The two standard tools to manipulate animated worlds are VRML and Java. To view a virtual animation, you need a program like QuickTime VR. Compressed files When you download files, they’re probably compressed. Windows files have a .zip extension. Macintosh files usually have a .sit extension and are opened with StuffIt. 133 Lesson 2. Web design I. A typical home page In pairs, discuss these questions 1) Why do companies have websites? 2) What is the difference between a website and a web page? 3) What is a home page? 4) Do you have a blog or personal website? Describe the home page to your partner II. Web page design A. Read the text and find the following 1) The language used to create web documents 2) The type of software that lets you design web pages without writing HTML codes 3) The format invented by Adobe to distribute text files over the Internet 4) A method of displaying multiple HTML documents in the same browser window 5) Three common graphics formats used on websites 6) Three popular formats used to store and play back video Web page design language), HTML and web editors The code behind most web pages is HTML (Hypertext markup which consists of commands called tags. Tags are placed around pieces of text to tell the 134 web browser how to display text or format that can be viewed with pictures. You can view the source Acrobat Reader). HTML code of a web page by Background – the underlying choosing the Page Source option in colors and patterns of a web page your web browser. But you needn’t Tables – with columns and rows, learn HTML in order to build your used to position images and text on own website. Instead, you can use a a page word processor with web design Frames – rectangular areas that capabilities or dedicated web editor allow the display of different pages like Macromedia Dreamweaver or in the same browser window. Microsoft FrontPage. Web editors are Cascading Style Sheets (CSS) – a user-friendly and WYSIWYG (What mechanism for adding styles to You See Is What You Get). Different web documents. You could use buttons and menu items let you design HTML code to specify the font, a page without writing HTML text styles and background color. HTML files have this basic structure: Nowadays, however, it is more Start with <html> common to use CSS. This makes, Have heading text that begins with it easy to <head>, which has a title enclosed changes across a website. between tags and ends with </head> Graphics, apply presentation clip art, icons, Have body text that starts with background <body>, where you place the contents wallpaper, of the actual document (i.e. text, images – common formats are .jpg images, links, etc.) and ends with (joint photographic experts group), </body> ideal for pictures with many End with </html> colors, .gif (graphics interchange templates, and transparent You can create link to other web format), ideal for pictures with pages by using the tag <a href = fewer colors, and .png (portable “filename”>active text </a> network graphics), which supports Web page elements 16 million colors. There are a number of different Hyperlinks – highlighted text or elements that you can use on a web pictures (buttons, image maps, page: etc.) that act as links to other Text – displayed in a variety of pages. If you want to share fronts and sizes. Most text files are information with people, you can available in two formats: HTML of use RSS feeds and provide readers PDF (the portable document 135 with a link to the feed. RSS allows .mov (QuickTime movie) and .mpg subscribers to receive updates of (moving picture experts group). blogs, news, podcasts, etc. Before If you want to inject something going live, you should check that special into you web pages, you can all the links work. use Adobe Flash to include interactive Audio, video and animation animations and streaming audio. Many websites now incorporate Additionally, you can insert Java audio files, and if you’re designing a applets – small programs that enable site, you may like to insert songs, the creation podcasts, etc. The most common Animations are made up of a series of audio formats are .wav (Windows independent pictures put together in wave audio format), .ra (RealAudio sequence to look like moving pictures. file) and .mp3 (MPEG-1 Audio Layer To see or hear all these files, you must 3). have the right plug-in, an auxiliary Full-motion video is stored in these program that expands the capabilities formats: .avi (audio video interleave), of of interactive your web files. browser. B. Read the text again and then match the sentence beginnings (1-6) with the correct ending (a-f) 1) Instructions in HTML 2) Cascading Style Sheets are the way 3) A hyperlink is any clickable text 4) A plug-in is a small program 5) Java applets are used to provide 6) RSS feeds are summaries of web content a. Image or button that takes you to another place on the Web b. Used for handling audio, video and animation files c. Are called tags d. Interactive features to web applications e. To define the presentation of web pages, from fonts and colors to page layout f. Published in the Really Simple Syndication format for download III. Language work: modal verbs A. Underline all the modal verbs in the above text and then look at the HELP box. Which modal verb from the HELP box does not appear in the text? Can you think of any other modal verbs? 136 To talk about ability HELP box Modal verbs They are looking for artists who We use modal verbs to add extra can draw and design web pages meaning to the main verb. They are Could is the past tense of can followed by infinitive without to. and is used to talk about ability in Modal verbs are used in the following the past ways: To talk about obligation or necessity To see or hear all these files. You To express a possibility You can/could use Adobe Flash to include interactive animations must have the right plug-in You may like to insert songs, …you needn’t learn HTML in podcasts, etc. order to build your own website Can and could are often Needn’t means don’t need to or interchangeable when talking about don’t have to and is used to express possibility. May and might are used a lack of obligation to express weaker possibilities and To give advice Before going live, you should often come before the verb like to mean It is possible you will like check that all the links work To ask for permission Can/Could/May I use your mobile phone? May is more formal than can or could B. Complete these sentences with suitable modal verbs from the HELP box. There may be more than one possible answer 1) With Java, I…………. include some attractive banners on my website 2) With a web editor, you……..create a web document easily 3) These days, you………….learn how to use complicated HTML codes. Modern web design software is user-friendly and converts a visual layout into HTML code 4) Once live, you…………update your website regularly 5) To view a PDF file, you……….have Adobe Acrobat Reader 6) Websites with graphics are more inviting than those written in plain text, so you…………..like to insert some graphics into your documents. 137 7) …………………I use your laptop? I need to print out this report. C. In pairs, discuss at least two things 1) You can now do more easily because of the Internet 2) You could do better if you had a faster internet connection 3) That may/might happen to the Internet in the next ten years. 4) You must consider when designing a website 5) You should take into account when choosing which PC to buy. IV. Blogs A. In pairs, discuss these questions 1) What is a blog? 2) Which blogs do you read regularly? B. Imagine you wanted to start your own blog. In pairs, discuss these questions 1) Why would you start your own blog – to write a diary of your thoughts or to share you expertise on a particular topic? 2) What types of media would you include – text, photos, video, audio (including podcasts)? 3) Would you insert links to other blogs? Which ones? 4) Would you focus on a particular subject or have a mix of several topics? 5) Which site would you use to host your blog? 138 MODULE 7. PROGRAMING / JOBS IN ICT Learning objectives In this module, you will learn how to: Understand basic concepts in programming, and acquire vocabulary connected with it Recognize acronyms and abbreviations associated with programming Ask and answer questions about computer languages Discuss the professional skills and personal qualities required for the jobs of senior programmer and DTP operator Write a letter applying for a job. 139 Lesson 1. Program design I. Warm-up A. In pairs, try to think of an answer for the question. What is programming? Look at the definition in the Glossary. Is it similar to yours? B. Complete the following definitions with the words and phrases in the box. the various parts of the program may occur in programs binary numbers a given problem language 1. algorithm The step-by-step specification of how to reach the solution……….. 2. flow chart A diagram representing the logical sequence between the various parts of the program………………………………... 3. coding The translation of the logical steps into a programming ………… 4. machine code The basic instructions understood by computers. The processor operates on codes which consist of …………….................... The techniques of detecting, diagnosing and correcting errors (or ‘bugs) which may occur in programs………… II. Reading Read the text and find answers to these questions. 1) Do computers understand human languages? 2) What are the differences between low-level and high-level languages? 3) What is an assembler? 4) What is the function of compilers? 5) What do you understand by the terms source program and object program? 6) In the future, could computers be programmed in Spanish, French, or Japanese? 140 Programming languages Unfortunately, computers cannot understand ordinary spoken English or quite complex and restricted to particular machines. any other natural language. The only To make the programs easier to language they can understand directly write and to overcome the problem of is called machine code. This consists intercommunication between different of the 1s and 0s (binary code) that are types processed by the CPU. languages were designed such as of machines, higher-level However, machine code as a BASIC, COBOL, FORTRAN, or means of communication is very Pascal. These are all problem-oriented difficult to write. For this reason, we rather use symbolic languages that are easier Programs written in one of these to understand. Then, by using a languages special program, these languages can programs) are converted into a be translated into machine code. For lower-level language by means of a example, compiler the so-called assembly than machine-oriented. (known as (generating the object languages use abbreviations such as program). ADD, statement in a high-level language is SUB, MPY to represent On source compilation, instructions. These mnemonic codes generally are like labels easily associated with machine code instructions. the items to which they refer. People communicate instructions to Basic languages, where translated into each many the the computer in symbolic languages program is similar to the machine and the easier this communication can code version, are known as low-level be made, the wider the application of languages. In these languages, each computers will be. Scientists are instruction is equivalent to a single already machine code instruction, and the Intelligence and the next generation of program is converted into machine computers may be able to understand code by a special program called an human languages. working on Artificial assembler. These languages are still III. Language work: Infinitive constructions A. The infinitive is used: After adjectives - It is difficult to use machine code. After modal verbs with to: ought to, used to - I ought to make a back-up copy. - Using a computer is much easier than it used to be. 141 After modal and auxiliary verbs without to: can, could, may, might, shall, should, will, would, would rather, would sooner - Unfortunately, computers can’t understand English. - I’d rather buy a game than a spreadsheet. B. Make sentences as in the example. Example Not easy/write instructions in Pascal It is not easy to write instructions in Pascal 1) advisable/test the program under different conditions. 2) expensive/set up a data-processing area. 3) unusual for a program/work correctly the first time it is tested. 4) difficult for students/learn FORTRAN. 5) important/consider the capabilities of the programming language. 6) quite easy/write instructions in BASIC. C. Now look again at the reading passage in Task 2. Underline the infinitive constructions after modal verbs. Example: Unfortunately, computers cannot understand ordinary spoken English… D. Look at these pairs of examples and decide where there is an ‘important’ change in meaning. 1 2 3 4 5 a I remember shutting down the computer before I left the room. b Please, remember to buy the new program. a They stopped to look at the flowchart. b They stopped looking at the flowchart. a I like studying C language. b I like to study C language in the evenings. a It has started to rain. b It has started raining. a He needs to work harder. b This hard disk needs repairing. Lesson 2. Languages I. Warm-up A. Make a list of as many computer languages as you can think of. B. Study this table about Java and answer the questions below. Language Date Characteristics Uses Java 1995 Cross-platform Designed to language that create Internet can run on any applications. Invented by Sun machine. Microsystems. When you see Small Java a Web page programs, called containing ‘applets’, let you Java links, a watch animated Java program characters, play is executed music and automatically. interact with information. 1. Who invented Java? 2. When was Java developed? 3. Can Java run on any computer (Mac, PC, or UNIX workstation)? What are Java’s small programs called? What can you do with them? II. Language work: Would, Revision of time clauses A. The use of ‘would’ We use ‘would’ in conditional sentences. For example: If you spilled coffee on the keyboard, you would damage it. Often the condition is implied, not stated. For example: (If I had time) I’d like to build in new links. (If I had to make a choice) my favorite site would have to be the Internet Movie Database. What is the implied condition in this extract? I would look at other sites too for good ideas. B. Complete the gaps in this dialogue with ‘will’ or ‘would’ or the reduced forms ‘’ll’ and ‘’d’ where appropriate. A What ………..1 you do when you finish your diploma? B I ………..2 like to take a course in multimedia. A How long ………..3 that take? B If I choose the certificate, it ………..4 take 6 months but if I chose the master’s, it ………..5 take a full year. A What ………..6 be the advantage of the master’s? B I guess I ………..7 have better job prospects. A When ………..8 you decide? B It depends on my finals. If I do well, I ………..9 go for the master’s. C. Link these statements using an appropriate time clause. 1 2 3 4 5 6 a You click the mouse pointer on the file b It is highlighted. a You cannot save a file. b You name it. a The files are transferred. b The transfer is graphically displayed. a Remove any floppies. b You close down the computer. a The OK button is clicked. b The copying process begins. a The percentage of file transferred is displayed. b Your browser downloads from the Internet. 7 8 9 10 III. a The virus is not activated. b You open the infected file. a You repair a PC. b Ensure the machine is disconnected. a Don’t open an email attachment. b You have virus-checked it. a You add memory. b Change the BIOS settings. Speaking Work in pairs. Student A: IV. A short description of BASIC Read the passage and complete it with verbs in brackets in the correct form. BASIC is a general purpose high-level programming language, originally designed (develop) ……………1 program in conversational mode. The name BASIC (stand) ……………2 for Beginner’s Allpurpose Symbolic Instruction Code. This language is (find) ……………3 on most microcomputers because it (be) ……………4 user-friendly and easy to learn. BASIC (consist) ……………5 of two main parts: the source language statements – the instructions which form the program – and the system commands which (allow) ……………6 us to control and edit a program. BASIC enables the user (interact) ……………7 with the program while it is being (execute) ……………8, which means that data can be (input) ……………9 while the program is running. Each instruction is (give) ……………10 a line number which defines the logical sequence of statements within the program. Some well-known system commands in BASIC are: RUN, which executes a program (hold) ……………11 in a BASIC file; LIST, which prints a listing of a program on the screen; and DELETE, which (remove) ……………12 a program from a file. A large number of PC manufacturers adopted BASIC. At present, however, there (be) ……………13 so many versions and extensions that programs written for one type of PC are not directly portable to another. Lesson 3. Jobs in ICT I. IT professionals Complete these definitions with jobs from the box Software engineer Computer security Blog administrator specialist DTP operator Hardware engineer Help desk technician Network webmaster administrator 1) A………..designs and develops IT devices 2) A………..writes computer programs 3) A………….edits and deletes posts made by contributors to a blog 4) A………….uses page layout software to prepare electronic files for publication 5) A………..manages the hardware and software that comprise a network 6) A………..designs and maintains websites 7) A…………works with companies to build secure computer systems 8) A…………..helps end-users with their computer problems in person, by email or over the phone II. Job advertisements Discuss if you would like to apply for one of the jobs. Give reason answers DTP operator Required for a leading financial magazine We are looking for a bright, competent QuarkXpress operator with at least three years’ experience in design and layout. Skills in Photoshop, Freehand or Illustrator an advantage. Ability to work in a team and to tight deadlines is vital. Please apply in writing, with CV and samples of your work, to Tom Parker, Production Manager, Financial Monthly, Stockton Street, London DIGITUM-UK SENIOR PROGRAMMER required by DIGITUMUK, a leading supplier of business systems to the insurance industry. You will be able to work on the full range of software development activities – analysis, design, coding, testing, debugging and implementation. At least two years’ experience of COBOL or C++ is necessary. As we are active in Europe, fluency in French, Italian or another European language is desirable. Don’t miss this opportunity to learn new skills and develop your career. Send your CV to CHRIS SCOTT, PERSONNEL MANAGER, DIGITUM-UK, 75 PARKSHILL STREET, LONDON SW14 3DE III. A letter of application A. Read the letter of application below and answer these questions 1) Which job is Sarah Brown applying for? 2) Where did she see the advertisement? 3) How long has she been working as a software engineer? 4) What type of programs has she written? 5) When did she spend three months is Spain? Dear Mr Scott, I am writing to apply for the position of Senior Programmer, which was advertised on 28th March in The Times. I graduated in May 2007 and did a work placement with British Gas as part of my degree. Before taking my present job I worked for a year with NCR. I stayed in this job (1)…………….March 2009. (2)……………….the last three years I have been working as a software engineer for Intelligent Software. I have designed four programs in COBOL for commercial use, and (3)……………..January I have been writing programs in C for use in large retail chains. These have been very successful and we have won several new contracts in the UK and Europe on the strength of my team’s success. Two year (4)………….. I spent three months in Spain testing our programs and also made several visits to Italy, so I have a basic knowledge of Spanish and Italian. I now feel ready for more responsibility and more challenging work, and would welcome the opportunity to learn about a new industry. I enclose my curriculum vitae. I will be available for an interview HELP box at any time. for, since, ago, until I look forward to hearing from you Yours sincerely, Sarah Brown B. Look at the HELP box and then complete the letter with for, since, ago or until We use for to refer to a period of time. I’ve lived in Liverpool for five years. We use since to refer to a point in time I’ve been unemployed since May 2007 We use ago with the past simple to say when something happened. We put ago after the time period. I got married five years ago. We use until to mean up to a certain time I stayed at high school until I was 18 IV. Language work: the present perfect A. Look at the HELP box and then choose the correct words in brackets to complete these sentences 1) He (‘s never liked/ ‘s never been liking) Maths 2) They (‘ve worked/ ’ve been working) on the project all day 3) John (‘s used / ‘s been using) the computer for hours – he looks really tired 4) How many emails (have you written / have you been writing) to day? 5) She (‘s written / ‘s been writing) this essay since 9 o’clock. 6) They (‘ve interviewed/ ‘ve been interviewing) five candidates today. HELP box Present perfect simple Present perfect continuous We form the present perfect simple with We form the present perfect continuous have/has + past participle with have/has been + present participle I’ve used Microsoft Access for many Since years. January I’ve been writing program in C I haven’t used Microsoft Access for We use this tense to talk about: Action which started in the past and years. We use this tense to talk about: are still happening States that started in the past and For the last three years I’ve been continue to the present working as a software engineer of Since 2006, I’ve been a computer Intelligent Software Past actions that continue to the operator for PromoPrint Past actions that continue to the present, where we put an emphasis on present, where we put an emphasis duration (how long) on quantity (how many) She’s been working all morning I have designed four programs in Contrast with the past simple COBOL We use the past simple to talk about Personal experiences, especially with events that happened at a specific time in the past that are now finished ever and never. Have you ever worked with I graduated in May 2007 database? Not: I have graduated in… I’ve never worked with databases. I stay in this job until March 2009 Two years ago, I spent three months in Spain B. Make questions using these prompts. In pairs, ask and answer the questions 1) Ever/live or work in another country? 2) Ever/ have a bad job interview? 3) Ever/do a job you hated? 4) How long/study English? 5) How long / use computers? 6) How many emails / receive today? 7) How many jobs / apply for this year? MODULE 8. COMPUTERS TOMORROW Learning objectives In this module, you will learn how to: Talk about different kinds of data communication systems: teletext, fax, local bulletin boards and the Internet Describe the components and functions of a computer network, in oral and written form Understand and discuss basic ideas about security and privacy on the Internet Talk and write about new technologies Understand predictions about the impact of computers on our lifestyle. Lesson 1. Electronic communications I. Before you read Try to answer these questions. 1) How can a PC be connected to another computer? 2) What data communication systems can you think of? Make a list. II. Reading A. Match the data communication services on the left with the requirements on the right. Then read the passage and check your answers. 1. fax a. To send a personal message to a friend who is 2. electronic mail (e-mail) b. To send a copy of a paper document – for 3. teletext 4. local at a different workstation. instance, a scientific article – from Trento bulletin board University to Cambridge University. system (BBS) c. To access massive databases containing all 5. commercial service online kinds of information, or to be connected with an airline reservations service. d. To receive shareware and public domain programs from a user group. e. To find out weather forecasts and sports information from the television. Channels of communication What are ‘telecommunications’? a bridge between digital and analogue This term refers to the transmission signals. The word ‘modem’ is an of information over long distances abbreviation using the telephone system, radio, TV, Odulator/DEModulator. satellite, or computer links. Examples modem modulates, it sends very rapid are two people speaking on the phone, on/off pulses. The computer on the a sales department sending a fax to a other end translates (demodulates) client, or someone reading the teletext those signals into intelligible text or pages on TV. But in the modern graphics. Modem transmission speeds world, mainly are measured in kilobits per second. means transferring information from Typical speeds are 28.8, 33.6 and 56 one PC to another via modem and kbps. telecommunications phone lines (or fibre-optic cables) of When a Today, a lot of companies find it What can you do with a modem? more A modem is your computer’s link employees doing their work at home. to the external world. With a modem, Using a modem, they transfer their you can exchange email and files with work into the office where it is printed friends and colleagues; you can access and the Web and search for information applications is endless. about the stock market, current affairs, What entertainment, telecommunicate? etc.; you can efficient to distributed. do have The you list need some of to participate in newsgroups and live You just need a PC (or a terminal), conversations; you can make bank a modem connected to the computer transactions and buy things from the and comfort of your home. You can also communication software. Once you access your have installed and configured your computer at home or your laptop in a modem, you can communicate with hotel room. people through bulletin boards and your office from the telephone line, and online services. Local bulletin boards Bulletin board systems (BBS) are Modems frequently free because they are run Your PC is a digital device. by enthusiasts and sponsored by user However, the telephone system is an groups or small businesses. The first analogue device, designed to transmit time you make a BBS connection you the sounds and tones of the human are required to register your name, voice. That’s why we need a modem – address, phone number, and other program to download files from information such as the kind of FTP sites, and IRC software so that computer and modem you are using. you can have live chats with other The person who administers the BBS users. Most ISPs charge a flat is called sysop (system operator). You monthly or annually fee that gives can use a BBS to download artwork, you games, and programs, or you can Internet. unlimited main access to the participate in ongoing discussions. The You can also upload (send) programs, services but make sure they are shareware or CompuServe, public domain programs. Microsoft Network. They differ from Online service providers dedicated ISPs in two ways: (1) they are commercial online America Online, Prodigy, and the To gain access to the Internet, you use a smooth, easy-to-use interface, must first open an account with an and (2) they have extra services for Internet service provider (ISP) or a members only (but they charge higher commercial online service provider. prices). For example, they offer airline Both offer Internet access, but the reservations, latter provides exclusive services. online shopping, and stories for Internet service providers usually children. They also let you search offer access to the Web and their online encyclopedias and special newsgroups, an email address, a database. professional forums, B. Complete the sentences by using a term from the list. Then write the words in the crossword. modem network online download newsgroups services account telephone 1. When you are connected to the Internet, you are described as being …………… 2. To communicate via the Internet, you need a PC, modem, and a …………… 3. To have access to the Internet, you must first open an …………… 4. You need a …………… to convert computer data into a form that can be transmitted over the phone lines. 5. The public discussion areas on the Internet are called …………… 6. You can use a BBS to …………… clip-art, games, and shareware to your PC. 7. CompuServe and America Online offer exclusive …………… to their customers. 8. The Internet is a global …………… of computer networks. III. Language work: Making predictions A prediction is a statement about a particular subject in which we say what we think will happen in the future. Predictions are not always absolute, but can be expressed with different levels of certainty, according to the context in which they are made. a. Certainty can be expressed by: will (definitely, certainly) certain, sure without a doubt, without question b. Probability can be expressed by: probable, probably, likely most/highly probable, most probably most/ highly likely c. Possibility can be expressed by: may (not), might (not), can, could possible, possibly, perhaps d. Improbability can be expressed by: improbable, unlikely doubtful, questionable probably not most/ highly improbable/ unlikely most/ highly doubtful/ questionable most probably not e. Impossibility can be expressed by: present or past future cannot, could not not possible, impossible could not not possible, impossible A. These expressions are used in sentences in different ways. For examples: 1) Notebook computers will definitely be cheaper next year. 2) It is (highly) probable/ likely that notebook computers will be cheaper next year. 3) Notebook computers may/ might be cheaper next year. 4) Perhaps notebook computers will be cheaper next year. 5) It is unlikely/ doubtful that notebook computers will be cheaper next year. 6) Notebook computers will most probably not be cheaper next year. 7) Notebook computers will definitely not be cheaper next year. 8) It is impossible that notebook computers will be cheaper next year. B. Match the if-clauses (1 to 6) to the main clauses (a to f) to make complete sentences. 1 If you never read computer magazines… 2 bulletin board. If you never back up your hard disk… 3 a …you would be able to access our b …it is unlikely that you will have a problem with computer viruses. If you had a modem… c …we would have a bigger range of typefaces and fonts to choose from. 4 If you software… don’t copy pirated d …you will miss important new products. 5 If I knew more programming e …I would get a better job. languages… 6 If we bought a better printer… f …you will probably lose some important files. C. Complete the sentences with the words in the box. Are the sentences first (F) or second (S) conditionals? would not will be look at will get grows wanted leave Would need will be reduced installed post 1 If you ………... your VDU in direct sunlight, it ………... damaged 2 If you ………... your screen for too long, you………... a headache. 3 If you ………... to link your PCs with a mainframe, you ………... to install a network. 4 If the market for portable computers ………..., prices ………... even more next year. 5 If we ………... a fax machine and email facility, we ………... so many letters each day. D. Now make up three first conditional and three second conditional sentences of your own Lesson 2. Internet issues I. Warm-up 1. Try to answer these questions. 1) Is it technically possible for computer criminals to infiltrate into the Internet and steal sensitive information? 2) What is a hacker? 3) Can viruses enter your PC from the Internet? 2. Match these texts with the correct pictures. 1. Web browsers warn you if the 2. Private networks use a software connection is not secure; they and hardware mechanism, called a display a message when you try ‘firewall’, to block unauthorized to send personal information to a traffic from the Internet. server. 3. You have to type your user name 4. An open padlock in Netscape and password to access a locked Communicator indicates the page computer system or network is not secure; a closed padlock indicates the page is encrypted. II. a b c d Reading A. Read the text on the following page and find answers to these questions. 1) Why is security so important on the Internet? 2) What security features are offered by Netscape Communicator and Internet Explorer? 3) What security standard is used by most banks to make online transactions secure? 4) How can we protect and keep our email private? 5) What methods are used by companies to make internal networks secure? 6) Which ways can a virus enter a computer system? Security and privacy on the Internet There are a lot of benefits from an open system, like the Internet, but we allow you to disable or delete ‘cookies’. are also exposed to hackers who break If you use online bank services, into computer systems just for fun, as make sure your bank uses digital well as to steal information or certificates. propagate viruses. So how do you go standard is SET (secure electronic about transactions). making online transactions secure? A popular security Email privacy Similarly, as your email message Security on the Web The question of security is crucial when sending travels across the net, it is copied confidential temporarily on many computers in credit card between. This means it can be read by numbers. For example, consider the unscrupulous people who illegally process of buying a book on the Web. enter computer systems. information such as You have to type your credit card The only way to protect a message number into an order form which is to put it in a sort of ‘envelope’, that passes from computer to computer on is, to encode it with some form of its way to the online bookstore. If one encryption. A system designed to send of the intermediary computers is email infiltrated by hackers, your data can Privacy, a freeware program written be copied. It is difficult to say how by Phil Zimmerman. privately is Pretty Good often this happens, but it’s technically Network security possible. Private networks connected to the To avoid risks, you should set all Internet can be attacked by intruders security alerts to high on your Web who browser, Communicator, information such as Social Security and Internet Explorer display a lock numbers, bank accounts, or research when the Web page is secure and and business reports. Netscape attempt to take valuable To protect crucial data, companies hire security consultants who analyze the risks and provide security solutions. The most common methods of protection are passwords for access control, encryption and decryption care when downloading files from the Web. (Plain text email alone can’t pass a virus) Remember also to update your anti-virus software as often as possible, since new viruses are being created all the time. systems, and firewalls. Virus protection Viruses can enter a PC through files from disks, the Internet, or bulletin board systems. If you want to protect your system, don’t open email attachments for strangers and take HELP box hacker: a person who obtains unauthorized access to computer data cookies: small files used by Web servers to know if you have visited their site before certificates: files that identify users and Web servers on the net, like digital identification encryption: the process of encoding data so that unauthorized users can’t read it decryption: the process of decoding encrypted data transmitted to you. B. Complete these sentences by using a term from the text. Then write the words in the puzzle. 1. Users have to enter a p…………. to gain access to a network. 2. You can download a lot of f…………. or public domain programs from the net. 3. Hundreds of h…………. break into computer systems every year. 4. A computer v…………. can infect your files and corrupt your hard disk. 5. The process of encoding data so that unauthorized users can’t read the data is known as e…………. 6. A f…………. is a device which allows limited access to an internal network from the Internet. 7. You can include an a…………. as part of your email message. This company uses d…………. techniques to decode (or decipher) secret data. III. Hackers! Read the text in order to answer these questions. 1) Which hacking case inspired the film War Games? 2) Why was Nicholas Whitely arrested in 1988? 3) How old was the hacker that cracked the US defense computer in October 1989? 4) Who was known as ‘Dark Dante’ on the networks? What was he accused of? 5) Which computer club showed on TV a way to attack bank accounts? Sept ‘70 John Draper, also known as Captain Crunch, discovers that the penny whistle offered in boxes of Cap’n Crunch breakfast cereal perfectly generates the 2,600 cycles per second (Hz) signal that AT&T used to control its phone network at the time. He starts to make free calls. Aug ‘74 Kevin Mitnick, a legend among hackers, begins his career, hacking into banking networks and destroying data, altering credit reports of his enemies, and disconnecting the phone lines of celebrities. His most famous exploit – hacking into the North American Defense Command in Colorado Springs – inspired War Games, the 1983 movie. Jul ‘81 Ian Murphy, a 23-year-old known as Captain Zap on the networks, gains instant notoriety when he hacks into the White House and the Pentagon. Dec ‘87 IBM international network is paralyzed by hacker’s Christmas message. Jul ‘88 Union Bank of Switzerland ‘almost’ loses 32 million to hackercriminals. Nicholas Whitely is arrested in connection with virus propagation. Oct ‘89 Fifteen-year-old hacker cracks US defense computer. Nov ‘90 Hong Kong introduces anti-hacking legislation. Aug ‘91 Israelis arrest 18-year-old for hacking foreign banking and credit card networks. Jul ‘92 In New York, five teenagers are charged with breaking into computer systems at several regional phone companies, large firms and universities. Kevin Paulson, known as ‘Dark Dante’ on the networks, is Dec ‘92 charged with stealing tasking orders relating to an Air Force military exercise. He is accused of theft of US national secrets and faces up to 10 years in jail. Feb ‘97 German Chaos Computer Club shows on TV the way to electronically obtain money from bank accounts using a special program on the Web. May ‘98 Computer criminals propagate a lot of viruses through the Internet. IV. Language work: The past simple (revision) Look at the text in Task 3 again and put the verbs into the past. Example In September 1970, John Draper discovered that the penny whistle … generated … He started to make free calls. Lesson 3. Networks I. Small networks In pairs, discuss these questions 1) What is a computer network? 2) What are the benefits of using networks? II. Networking FAQs A. Look at the FAQs (i - vi) without reading the whole text. In pairs, try to answer as many of the questions as you can B. Read the whole text and answer these questions. 1) What does PAN stand for? 2) What is a network protocol? 3) How do you log on to an Internet Service Provider? 4) WiMAX is a type of wireless network. What is it used for? 5) What equipment do you need to set up a wireless LAN? 6) What are the advantages and disadvantages of wireless networks? Networking FAQs i. How many types of network are capabilities – that is, share files there? and Networks are classified according requiring to different criteria: peripherals a separate without server computer. Geographical PANs Topology, or layout: In bus Networks) network, all the computers are typically include a laptop, a connected to a main cable, or mobile phone and a PDA; bus. In a star network, all data LANs cover a building; MANs flows through a central hub, a (Metropolitan Area Networks) common connection point for cover a campus or a city; the devices in the network. In a WANs (Wide Area Networks) ring network, all devices are cover a country or a continent. connected to one another in a (Personal area: Area Architecture: In a client- continuous loop, or ring. server network, a computer Network protocol: This is the acts as a server and stores and language, or set of rules, that distributes information to the computers use to communicate other nodes, or clients. In a with each other. Networks use peer-to-peer network, all the different computers have the same protocols. For instance, the Internet uses TCP/IP ii. newsletters, etc. It is important that you remember to log off after using How do I install a wired modem the Internet. An open line increases router? the risk of viruses, and hackers might A modem router is a device that break into your computer to steal connects your computer or home LAN to the Internet confidential data. iv. What is wireless networking? Plug one end of the phone cord Wired networks are linked by directly into a phone jack, and Ethernet cables, phone lines and high- the other end into the ADSL speed fiber optic cables. Wireless port on the router. networks, however, use Plug one end of the Ethernet electromagnetic waves, such as radio cable into your computer’s waves, to transmit data. These are the network port and the other end main types of wireless networks: into an Ethernet port on the Satellites – for long distances router. WiMAX – for connecting Wi- Turn on your computer. To set Fi hotspots. Wi-Fi – for medium-range up, or configure, the router, you’ll need to input some distances parameters, for example your Bluetooth – for short distances ISP’s name and phone number. GSM – for mobile phones NOTE: A router has various v. What do I need to set up a home Ethernet ports, so you can connect wireless LAN? various PCs to the router via Ethernet You’ll need computers equipped cables. If you already have a hub or with a wireless adapter or wireless switch connecting a LAN, you only card, a wireless access point (a need one cable to connect the hub to wireless router) and a broadband the router. internet connection. iii. How do I log on to the Internet vi. Which is better, a wired or service Provider? wireless LAN? You need to type in your username Wired LANs are more difficult to and password. Once you are online, install, but they are cheaper, faster and you for more reliable. Wireless networks let information on the Web, look up IT you move, or roam, from one access words in dictionaries, try out new point to another, but they are less software, and sign up for RSS feeds, secure and subject to interference. can get email, look C. In pairs, do this network quiz. See which pair can finish first. 1) This network typically consists of two or more local area networks, covering a large geographical area. a. LAN b. WAN c. Intranet 2) This type of network does not have a dedicated server; all the computers are independent. a. Peer-to-peer b. Client-server c. Metropolitan Area Network 3) On this topology, all devices are connected to the same circuit, forming a continuous loop a. Star b. Ring c. bus 4) The language used by computers to communicate with each other on the Internet is called a. Ethernet b. ADSL c. TCP/IP 5) Which cables are used to transfer information for the Internet over long distances at high speeds? a. Telephone lines b. Ethernet cables c. Fiber optic cables 6) Which device allows several computers on a local network to share an internet connection? a. An ADSL port b. A router c. Wireless adapter 7) Which device serves as a common connection point devices in a wireless network? a. Wireless access point b. Wire router c. Wireless adapter 8) Bluetooth is a wireless technology that uses radio waves to transmit data over a. Long distances b. Medium-range distances III. c. Short distances (ten meters of less) Language work: phrasal verbs A. Look at the HELP box. Do you have the equivalent of phrasal verbs in your language? How do you say the phrasal verbs in the HELP box? HELP box Phrasal verbs The meaning of some verbs with particle (often called phrasal verbs) can be easily understood form its two parts Look at the photos Separate network are linked over a public network, the Internet. However, many phrasal verbs have an idiomatic meaning, not predictable from the meaning of its parts. carry (= transport); carry out (= execute) Computer carry out the programs… Certain particles have similar meanings, regardless of the verb (on/off, in/out, etc.) Turn on / switch on (= start the operation of something) Turn off / switch off (= stop the operation of something) Other common phrasal verbs in computing include: Plug into (= connect) Plug one end of the phone cord into the phone jack Set up (= establish) What do I need to set up a wireless LAN? Sign up (= register, enroll in a service) Once connected, you can sign up for RSS feeds, newsletters, etc. Try out (= test or use experimentally) You can try out new software on their site Find out ( = learn, discover) Search the Web to find out more information about WiMAX Take up ( = occupy) Fiber optic cables take up less space than copper cables make up ( = constitute, form) Several LANs connected together make up a WAN fill in (= write the necessary information) You need to fill in this online form When the verb has a preposition associated with it, the preposition must precede the object: You can look for information on the Web. (not: look information for) When the particle is an adverb, it can precede or follow the direct object: You need to type in your username/…type your username in Turn on the computer/ turn the computer on If the direct object is a pronoun, the: particle must follow it You need to type it in (not: type in it) B. Complete these sentences with the correct form of a phrasal verb from the HELP box 1) To join the club, …………..this form and send it to our office 2) The CPU………..all the basic operations on the data 3) Digital music…………a lot of space – about 10 MB for every minute of stereo sound. 4) Thousands of networks…………..the Internet 5) You can use newsgroups to……….about the latest trends, customer needs, etc. C. Match the questions (1-6) with the answers (a-f) 1) Why was the hacker arrested? 2) Is it OK to log on to my bank account using public computers in a cybercafé? 3) How do I set up an internet connection at home? 4) Can I download software from your site? 5) How can I add video to instant messaging? 6) What do I need to do sign up for a Yahoo! Email account? a. Yes, but always remember to log off after you’ve ended your session. b. Yes, you can even try the programs out for a period before you buy them! c. Because he broke into a computer system and stole confidential data d. Simply install this program and plug the webcam into your computer. e. You need to install the software for your router. Follow the instructions provided by your ISP, probably in the form of a .pdf file on a CD f. You have to create a username and password and then give some personal details. Lesson 4. New technologies I. Future trends A. In pairs, discuss these questions 1) What do you think a trend is? 2) What trends in ICT do you think will affect our lives in the future? Make a list. B. Match the texts (1-5) with the pictures (a-e). which trends from your list in A are mentioned? b…………… a…………. d……………. e………… c…………… 1 By all accounts, nanotechnology – the science of making devices from single atoms and molecules – is going to have a huge impact on both business and our daily lives. Nano devices are measured in nanometers (one billionth of a meter) and are expected to be used in the following areas. Nanocomputers: Chip makers will make tiny microprocessors with nanotransistors, ranging from 60 to 5 nanometers in size. Nanomedicine: By 2020, scientists believe that nano-sized robots, or nanobots, will be injected into the body’s bloodstream to treat diseases at the cellular level. Nanomaterials: New materials will be made from carbon atoms in the form of nanotubes, which are more flexible, resistant and durable than steel of aluminum. They will be incorporated into all kinds of products, for example stain-resistant coatings for clothes and scratch-resistant paints for cars. 2 Artificial Intelligence (AI) is the science of making intelligent machines { and programs. The term originated in the 1940s, when Alan Turing said: “A machine has artificial intelligence when there is no discernible difference between the conversation generated by the machine and that of an intelligent person”. A typical AI application is robotics. One example is ASIMO, Honda’s intelligent humanoid robot. Soon, engineers will have built different types of android, with the form and capabilities of humans. Another AI application is expert systems – programs containing everything that an “expert” knows about a subject. In a few years, doctors will be using expert systems to diagnose illness. 3 Imagine you are about to take a holiday in Europe. You walk out to the garage and talk to your car. Recognizing your voice, the car’s doors unlock. On the way to the airport, you stop at an ATM. A camera mounted on the bank machine looks you in the eye, recognizes the pattern of your iris and allows you to withdraw cash from your account. When you enter the airport, hidden camera compares the digitized image of your face to that of suspected criminals. At the immigration checkpoint, you swipe a card and place your hand on a small metal surface. The geometry of your hand matches the code on the card, and the gate opens. You’re on your way. Does it sound futuristic? Well, the future is here. Biometrics uses computer technology to identify people based on physical characteristics such as fingerprints, facial features, voice, iris and retina patterns. Adapted from the Richmond Times-Dispatch. 4 Ubiquitous computing, also known as pervasive computing, is a new approach in which computer functions are integrated into everyday life, often in a invisible way. Ubiquitous devices can be anything from smartphones to tiny sensors in homes, offices and cars, connected to networks, which allow information to be accessed anytime and anywhere – in other words, ubiquitously. In the future people will interact naturally with hundreds of these smart devices (objects containing a microchip and memory) every day, each invisibly embedded in our environment and communicating with each other without cables. 5 In the ideal smart home, appliances and electronic devices work in sync to keep the house secure. For example, when a regular alarm system senses that someone is breaking into the house, it usually alerts the alarm company and then the police. A smart home system would go further, turning on the lights in the home and then sending a text message to the owner’s phone. Motorola Homesight even sends images captured by wireless cameras to phones and PCs. Smart homes can remember your living patterns, so if you like to listen to some classical music when you come home from work, your house can do that for you automatically. They will also know when the house is empty and make sure all appliances are turned off. All home devices will be interconnected over a home area network where phones, cable services, home cinemas, touch screens, smart mirrors and even the refrigerator will cooperate to make our lives more comfortable. Adapted from www.businessweek.com C. Read the text again and answer these questions 1) Which unit of measurement is used in nanotechnology? 2) What are the advantages of nanotubes over regular materials? 3) What will doctors use experts systems for? 4) What featutes are analyzed by biometrics? 5) Which trend refers to computers embedded in everyday devices, communicating with each other over wireless networks? 6) What will the alarm system do if someone breaks into a smart home. 7) How will devices be interconnected inside the smart home? D. Find words in the text with the following meanings. 1) A microscopic robot, built with nanotechnology (text 1)……….. 2) A robot that resembles a human (text 2)………. 3) Biological identification of a person (text 3)…………… 4) Integrated; inserted into (text 4)………………. 5) Electrical devices, or machines, used in the home (text 5)………… II. Language work: future forms A. Look at the HELP box and then choose the correct words in brackets to complete these sentences. 1) In the future, I hope we (‘ll have/ ‘re going to have) robots in the home to help us with the housework. 2) Hey, Nick, be careful, you (‘re going to spill/ ‘ll spill) that coffee on the computer! 3) It’s John’s birthday next week. We (‘ll give/ ‘re going to give) him a mobile phone. 4) – My laptop has crashed! - Don’t worry. I (‘ll lend/ ‘m going to lend) you mine. 5) The Internet (will probably change/ is probably going to change) the publishing industry in the way that TV changed the movie industry 6) Futurists predict that smart technology (will be/ is going to be) incorporated into fabrics, so you’ll be able to email from your coat! HELP box Future forms We use be going to + verb in the We use the future simple (will/ won’t + following ways: verb) in the following ways: To make predictions when you don’t have present evidence that something will happen. To describe future intentions She’s going to write a book about ubiquitous computing. To make predictions when you have Nanobots will be injected into the present evidence that something is body’s bloodstream to treat diseases going to happen To talk about hopes and promises, By all accounts, nanotechnology is especially with the words expect, going to have a huge impact on think, hope and probably business and our daily lives. They hope that people will interact We use the future continuous (will naturally with hundreds of smart be + -ing form of the verb) to talk about devices at a time actions in progress at a specific time in To describe an instant decision, often the future. In a few years, doctors will be using when we make an offer Sure, I’ll help you with your expert systems to diagnose illnesses We use the future perfect (will have homework. To talk about facts that will + past participle) to talk about actions finished at a specific time in the future. inevitably happen She’ll be 21 in May Soon, engineers will have built different types of android. B. Complete these sentences with the correct future form of the verb in brackets. Use the future continuous of future perfect. 1) Thanks to ICT, by the year 2030 we (find)………cures for the major diseases of our time. 2) In twenty years’time, some people (live)…………in space, perhaps inside a computerized colony. 3) By this time next week, I (work) ……………..for IBM 4) By this time next month, I (buy)…………..that BlackBerry that I’ve been wanting to buy for months. 5) Scientists predict that in twenty years’s time nearly everyone (live)………….in smart houses. C. In pairs, discuss these predictions. Do you agree or disagree? Give reasons for your answers. Look at the Useful language box to help you. 1) Someday, we’ll be talking to computers naturally, like friends. 2) Microchips implanted in our arms will serve as ID cards and contain our medical records. Useful language 3) Robots will learn to build themselves, without human help. 4) Smart homes will be I think that……. What do you think about number…? I’m not sure that…….will…….. I completely agree/disagree with…… voice-activated. 5) Computers will be ubiquitous and almost invisible, embedded into our homes and integrated into our lives. III. Making predictions A. Write your own predictions about these topics\ Work/Jobs Example: By the year 2030, human labor in industry will have been replaced by robots. Money Example: Cash will be replaced by electronic money Education Example: By the end of this century, every student in every school will have a PC. The internet Example: People in every country will have high-speed access to the Internet with five years. B. In pairs, compare your predictions. Find out more about your partners’. CÁC THUẬT NGỮ CHUYÊN MÔN (font chữ Times New Roman, in hoa, cỡ chữ 14, Bold) ………… (font chữ Times New Roman, cỡ chữ 14) TÀI LIỆU THAM KHẢO 1. Thạc Bình Cường, Hồ Xuân Ngọc, Tiếng anh chuyên ngành Công nghệ thông tin, Nhà xuất bản Khoa học và kỹ thuật, 2001. 2. Thạc Bình Cường, Tiếng Anh chuyên ngành Công nghệ thông tin, Nhà xuất bản Đại học sư phạm, 2006. 3. Tiếng Anh dành cho người sử dụng máy tính Infotech, Nhà xuất bản thống kê, 2000. 4. English for Information Technology, Nhà xuất bản OXFORD, 2005 DANH SÁCH BAN BIÊN SOẠN GIÁO TRÌNH DẠY NGHỀ TRÌNH ĐỘ TRUNG CẤP, CAO ĐẲNG (font chữ Times New Roman, in hoa, cỡ chữ 14 Bold) Tên giáo trình: (font chữ Times New Roman, cỡ chữ 14, Bold) Tên nghề: (font chữ Times New Roman, cỡ chữ 14, Bold) 1. Ông (bà)...... Chủ nhiệm 2. Ông (bà)...... Phó chủ nhiệm 3. Ông (bà)...... Thư ký 4. Ông (bà)...... Thành viên 5. Ông(bà)...... Thành viên 6. Ông(bà)...... Thành viên 7. Ông(bà)..... Thành viên 8. Ông(bà)...... Thành viên 9. Ông(bà)...... Thành viên DANH SÁCH HỘI ĐỒNG NGHIỆM THU GIÁO TRÌNH DẠY NGHỀ TRÌNH ĐỘ TRUNG CẤP, CAO ĐẲNG (font chữ Times New Roman, in hoa, cỡ chữ 14 Bold) 1. Ông (bà)...... Chủ tịch 2. Ông (bà)...... Phó chủ tịch 3. Ông (bà)...... Thư ký 4. Ông (bà)...... Thành viên 5. Ông(bà)...... Thành viên 6. Ông(bà)...... Thành viên 7. Ông(bà)..... Thành viên 8. Ông(bà)...... Thành viên 9. Ông(bà)...... Thành viên