9 TLE-ICT Quarter 1 LEARNER’S MATERIAL Module TLE Grade 9 PIVOT IV-A Learner’s Material Quarter 1 Module 3 First Edition, 2020 Published by: Department of Education Region IV-A CALABARZON Regional Director: Wilfredo E. Cabral CLMD Chief: Job S. Zape, Jr. Technology and Livelihood Education COMPUTER SYSTEM SERVICING Quarter 1-Module3 PERFORMING COMPUTER OPERATIONS Development Team of the Module Author: Daisy J. Velasco- TI Editor: Reviewer: Illustrator: Layout Artist: Management Team: , CID Chief , SDO EPS In-charge of LR Romyr L. Lazo, EPS In-charge of LR , EPS Subject Area In-charge Fe M. Ong-ongowan, Librarian Lhovie A. Cauilan, Teaching Aid Specialist Department of Education Region 4A CALABARZON Office Address: Gate 2 Karangalan Village, Cainta Rizal Landline: 02-868-257-73, Local 420/421 Email Address: lrmd.calabarzon@deped.gov.ph 3 WEEK 3 Guide in Using PIVOT Learner’s Material For the Parents/Guardian This module was collaboratively designed, developed and reviewed by educators both from public and private institutions to assist you, the teacher or facilitator in helping the learners meet the standards set by the K to 12 Curriculum while overcoming their personal, social, and economic constraints in schooling. This learning resource hopes to engage the learners in guided and independent learning activities at their own pace and time. Furthermore, this also aims to help learners acquire the needed 21st century skills while taking into consideration their needs and circumstances. As a facilitator, you are expected to orient the learners on how to use this module. You also need to keep track of the learners' progress while allowing them to manage their own learning. Furthermore, you are expected to encourage and assist the learners as they do the tasks included in the module. For the Learner This module was designed to provide you with fun and meaningful opportunities for guided and independent learning at your own pace and time. You will have to process the contents of the learning resource while being an active learner. THE COMPUTER SYSTEM I What I need to know? As you go through to this module, you will be able to understand what computer system is, identify the different types of computer, apply the knowledge acquire to classify the types of computer and Distinguished the components of Computer system such as the hardware, software and peopleware. To achieve the objectives cited above, you have to do the following: • Read the lessons carefully. • Follow the directions and/or instructions in the activities and exercises diligently. • Answer all the given tests and exercises. Content Standard The learner demonstrates understanding of basic concepts, underlying theories and core competencies in computer systems and networks. Performance Standard The learner independently provides quality and marketable service in computer hardware servicing in terms of computer systems and networks installation and diagnose and trouble shoot computer systems as prescribed in the TESDA Training Regulation. I What is new? PRETEST Multiple Choice. Select the letter of the best answer from among the given choices. Write your answer on a separate sheet of paper. 1. What computer that is also known as Personal Computer? a. Microcomputer b. Mainframe Computer c. Supercomputer d. none of the above 2. What is the type of computer which are used by the majority of the people in their daily lives? a. Microcomputer c. Desktop Computer b. Mainframe Computer d. all of the above 3. It can easily record everything from your signature, to your handwriting, to original drawings directly to your computer. a. Laptop c. Notebook b. Digital Tablets d. all of the above 4. It is a small and portable compared to the immobile desktop computer. a. Laptop c. Notebook b. Netbook d. all of the above 5. What computer that is also much smaller, portable and very lightweight? a. In-car Computer b. Netbook c. Notebook d. all of the above 6. It is essentially designed for surfing the net, while notebooks have different features, including better operating systems, optical drives and more offline use. a. In-car Computer b. Netbook c. Mainframe d. all of the above 7. What computer that is typically have a display screen with touch input and/or a miniature keyboard and weighting less than 2 pounds (0.91 kg)? a. In-car Computer b. Handheld Computer c. Mainframe d. all of the above 8. What computer which is referred to as the mid sized computers and they serve as the same functions as the normal desktop computers? a. Minicomputers b. Handheld Computer c. Mainframe d. all of the above 9.What type of computer that is large in size, large in memory and powerful? a. Minicomputer b. Handheld Computer c. Mainframe d. all of the above 10. What type of computer that is used for problems requiring complex calculations? a. Minicomputer b. Supercomputer c. Mainframe d. all of the above D What I know? In the previous module, you have learned to apply quality standards and operating procedures in the workplace. Do you think learning about them is useful? Let’s move on to the next Module the Computer System. But first, answer this question……… 1. How Computer Technology helps you in your daily living? ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _________________________________________________________________. D What is in? Activity 1.Direction. Choose the answers and fill-in the missing letter below. 1. Micro Personal Mini Palmtop Super Notebook Mainframe _ u ___ _ Computer. 2. 3. 4. M _ _ _ f _ _ _ _ (Large) Computer. M _ _ _ (Medium) Computer. M _ _ _ _ (Small) Computer. 5.P _ _ _ _ _ _ _ 6._ _ t _ _ _ _ _ 7.P _ _ _ _ _ p Computer Computer Computer D What is it? Guide 1. 2. 3. Question: What is a Computer? What are the different types of Computer? What are the classification of computers based on their sizes and functionalities? 4. What are the components of Computer system? UNDERSTANDING COMPUTER A computer is one of the most brilliant inventions of mankind. Thanks to the computer technology, we were able to achieve storage and processing of huge amounts of data; we could rest our brains by employing computer memory capacities for storing information. Due to computers, we have been able to speed up daily work, carry out critical transactions and achieve accuracy and precision in work. Computers of the earlier years were of the size of a large room and were required to consume huge amounts of electric power. However, with the advancing technology, computers have shrunk to the size of a small watch. Depending on the processing power and size of computers, they have been classified under various types. Let us look at the classification of computers. Different Types of Computers Based on the operational principle of computers, they are categorized as analog, digital and hybrid computers. Analog Computers: These are almost extinct today. These are different from a digital computer because an analog computer can perform several mathematical operations simultaneously. It uses continuous variables for mathematical operations and utilizes mechanical or electrical energy. Digital Computers: They use digital circuits and are designed to operate on two states, namely bits 0 and 1. They are analogous to states ON and OFF. Data on these computers is represented as a series of 0s and 1s. Digital computers are suitable for complex computation and have higher processing speeds. They are programmable. Digital computers are either general purpose computers or special purpose ones. Special purpose computers, as their name suggests, are designed for specific types of data processing while general purpose computers are meant for general use. Hybrid Computers: These computers are a combination of both digital and analog computers. In this type of computers, the digital segments perform process control by conversion of analog signals to digital ones. Classification of Computers The following are the classification of the different types of computers based on their sizes and functionalities: Mainframe Computers: Large organizations use mainframes for highly critical applications such as bulk data processing and ERP. Most of the mainframe computers have the capacities to host multiple operating systems and operate as a number of virtual machines and can substitute for several small servers. Minicomputers: In terms of size and processing capacity, minicomputers lie in between mainframes and microcomputers. Minicomputers are also called mid-range systems or workstations. The term began to be popularly used in the 1960s to refer to relatively smaller third generation computers. Servers: They are computers designed to provide services to client machines in a computer network. They have larger storage capacities and powerful processors. Running on them are programs that serve client requests and allocate resources like memory and time to client machines. Usually they are very large in size, as they have large processors and many hard drives. They are designed to be fail-safe and resistant to crash. Supercomputers: The highly calculation-intensive tasks can be effectively performed by means of supercomputers. Quantum physics, mechanics, weather forecasting, molecular theory are best studied by means of supercomputers. Their ability of parallel processing and their well-designed memory hierarchy give the supercomputers, large transaction processing powers. Microcomputers: A computer with a microprocessor and its central processing unit it is known as a microcomputer. They do not occupy space as much as mainframes do. When supplemented with a keyboard and a mouse, microcomputers can be called personal computers. A monitor, a keyboard and other similar input output devices, computer memory in the form of RAM and a power supply unit come packaged in a microcomputer. These computers can fit on desks or tables and prove to be the best choice for single-user tasks. Personal computers come in different forms such as desktops, laptops and personal digital assistants (refer to Figure 3). Let us look at each of these types of computers. Desktops: A desktop is intended to be used on a single location. The spare parts of a desktop computer are readily available at relatively lower costs. Power consumption is not as critical as that in laptops. Desktops are widely popular for daily use in the workplace and households. Laptops: Similar in operation to desktops, laptop computers are miniaturized and optimized for mobile use. Laptops run on a single battery or an external adapter that charges the computer batteries. Netbooks: They fall in the category of laptops, but are inexpensive and relatively smaller in size. They had a smaller feature set and lesser capacities in comparison to regular laptops, at the time they came into the market. Personal Digital Assistants (PDAs): It is a handheld computer and popularly known as a palmtop. It has a touch screen and a memory card for storage of data. PDAs can also be used as portable audio players, web browsers and smart phones. Most of them can access the Internet by means of Bluetooth or Wi-Fi communication. Tablet Computers: Tablets are mobile computers that are very handy to use. They use the touch screen technology. Tablets come with an onscreen keyboard or use a stylus or a digital pen. Apple's iPod redefined the class of tablet computers. Wearable Computers: A record-setting step in the evolution of computers was the creation of wearable computers. These computers can be worn on the body and are often used in the study of behavior modeling and human health. Military and health professionals have incorporated wearable computers into their daily routine, as a part of such studies. When the users' hands and sensory organs are engaged in other activities, wearable computers are of great help in tracking human actions. Wearable computers do not have to be turned on and off and remain in operation without user intervention. Elements of a Computer System Hardware Software Peopleware 1. Hardware refers to the physical, tangible computer equipment and devices which provides support for major functions such as input, process, output and storage. 2. Software – this term refers to the collection of electronic instructions that tells the computer what to do. It is a computer program that is installed in your computer. 3. Peopleware – the most important element of a computer system is its users. The following types of people interact with a computer system: a. System Analysts - are people who design the operation and processing of the system b. System Programmers – are people who write codes and programs to implement the working of the system. c. System Operators – are people who operate the system and use it for different purposes. Also called the end users like students, teachers, and other professionals. E What is more? Activity 2. True or False : Write true if the statement is Correct, Otherwise False. ________1. Minicomputers are the medium size computer. ________2.Micro Computer is extremely powerful mainframe computer used in scientific and engineering application. ________3.Super Computer is also used in weather forecasting. ________4. Computer is used to track information. _______5. In this digital world, having the knowledge and skills in computer servicing is the start and most fundamental of all. _______6. A computer is a mechanical machine that processes information. _______7. The computer system is a collection of entities like hardware, software and electricity. _______8. Hardware refers to the physical and tangible computer equipment _______9. Peopleware refers to the physical components of computer. _______10. Software refers to the collection of electronic instructions that tells the computer what to do. E What I can do? Activity 3: Group the following computer components based on their classification. Write your answer in a separate sheet of paper. Mouse Speaker Monitor System Anakyst Google Chrome Projector Scanner Mobile Legends Antivirus ms excel Webpage Designer Hardware Software MS Word Programmer Computer Technician Teacher & Students Peopleware Activity 3.1: Write down 5 places/venue or situations, where each type of personal computer is commonly used in our community. 1. Desktop Computer 2. Tablet Computer E What else can I do? Activity 4.Direction: Answer the following. Write your answer in a separate sheet of paper. 1. What is Computer System? Based on your understanding. _____________________________________________________________________________ _____________________________________________________________________________ _. 2. Why Computer Software is important? Based on your understanding. _____________________________________________________________________________ _____________________________________________________________________________ _______________. 3. Give at least four application software installed in your gadgets/computer and give their uses. SOFTWARE USES A. B. C. D. 4. Why Computer Hardware is important? Based on your understanding. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ __________________. 5. Give at least four example of computer hardware that can be seen at your home(hardware installed in your gadget) and give their functions/uses. HARDWARE FUNCTIONS/USES A. B. Criteria for the Activity Informative answer 5 Precise answer and very informative. No wrong spelling Total 5pts each 3 Somewhat informative With few spelling error. A What I have learned? Activity 5: Identify the type of computer being described in the following sentences and choose your answer inside the box . Write your answer in a separate sheet of paper. Laptop Tablet Computer Mainframe Computer PDA Wearable Computer Mini Computer Server Digital Computer Netbook Micro Computer Tablet Computer ______________________1. These are mobile computers that are very handy to use. ______________________2. They are computers designed to provide services to client machines in a computer network. ______________________3. They are also called mid-range systems or workstations. ______________________4. A computer with a microprocessor and its central processing unit. ______________________5. They fall in the category of laptops, but are inexpensive and relatively smaller in size. ______________________6. A type of computer which is intended be used on a single location. ______________________7. They use digital circuits and are designed to operate on two states, namely bits 0 and 1. ______________________8. Computers that have the capacities to host multiple operating systems and operate as a number of virtual machines and can substitute for several small servers. ______________________9. It is a handheld computer and popularly known as a palmtop. ______________________10. These computers can be worn on the body and are often used in the study of behavior modeling and human health. Reference 1. ICT 9 Learning Module 2013, pages 43-47. file:///C:/Users/Daisy/Desktop/CSS%20MODULE%2020202021/CSS%209%20MODULE/LM%209_learners%20material.pdf 2. CSS 7- Module 2020-2021, Published by the Department of Education – Division of Cagayan de Oro. 3. CSS 9- Module 2020-2021, Published by the Department of Education – Division of Cagayan de Oro. 4. https://www.google.com/search?q=application+software&tbm=isch&ved=2ah UKEwiJlJ64gsjrAhWDG6YKHaesDXEQ2cCegQIABAA&oq=application+software&gs_lcp=CgNpbWcQAzIHCAAQsQMQQz IKCAAQsQMQgwEQQzIECAAQQzIECAAQQzIECAAQQzIECAAQQzIECAAQQzIE CAAQQzICCAAyAggAOgUIABCxAzoICAAQsQMQgwFQ0s8EWMzrBGCx8QRoAH AAeACAAdMCiAGkGZIBCDAuMTkuMC4xmAEAoAEBqgELZ3dzLXdpei1pbWfA AQE&sclient=img&ei=v0ZOX8m4HoO3mAWn2baIBw#imgrc=TYrgDK8TP1A8x M 5. https://www.google.com/search?q=hardware+component&tbm=isch&source=i u&ictx=1&fir=Mf5P26AdDdvS4M%252C1ERXZykWTivlHM%252C_&vet=1&usg =AI4_-kSG2xYvH6uUtBK31QDRHVc3Z2pXMg&sa=X&ved=2ahUKEwiUxLfgcjrAhV5xYsBHZ1eBkcQ_h16BAgKEAQ#imgrc=JtmWqtj52DWxvM For inquiries or feedback, please write or call: Department of Education Region 4A CALABARZON Office Address: Gate 2 Karangalan Village, Cainta Rizal Landline: 02-8682-5773 local 420/421 Email Address: lrmd.calabarzon@deped.gov.ph