Introduction to Information Technology: Your Digital World
Using Information Technology, 10e
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© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
DEFINITION: Information Technology (IT)
describes any technology that helps to produce,
manipulate, store, communicate, and/or
disseminate information.
• Part 1: Computer Technology
• Part 2: Communications Technology
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
COMPUTER TECHNOLOGY: A computer is a programmable,
multiuse machine that accepts data—raw facts and figures —and
processes, or manipulates, it into information we can use, such as
summaries, totals, or reports.
- Its purpose is to speed up problem solving and increase
productivity.
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
COMMUNICATIONS TECHNOLOGY :
Communications technology , also called telecommunications
technology , consists of electromagnetic devices and systems for
communicating over long distances.
The principal examples are telephone, radio, broadcast
television.
In more recent times, there has been the addition of communication
among computers—which is what happens when people “go
online” on the internet.
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
- Online: means using a computer or some other
information device, connected through a network, to
access information and services from another computer
or information device.
- A network is a communications system connecting
two or more computers; the internet is the largest
such network.
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Information technology is essential on college
•
•
campuses.
IT is used in teaching, labs, and in course
management.
Many college classes are either taught online or
have a class website.
DEFINITION: Distance learning is online
education
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Problem: Computers in the classroom can be
used or misused.
• What should they be used for?
•
•
•
•
Following the lecture
Working along with the instructor
Performing instructor-assigned Internet searches
Completing assignments for this class
• What is misuse?
• Text messaging or emailing friends
• Surfing the Internet for entertainment
• Doing assignments for other classes
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• DEFINITION: Virtual means something that is
•
created, simulated, or carried on by means of a
computer or a computer network.
Virtual money
•
•
•
•
Cash-value cards
“Electronic wallets” (e.g., PayPal)
Online bill paying
E-Commerce:
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Cash-value cards: (such as subway fare cards)
• Online bill paying : it has been possible to pay bills online, such
as those from phone and utility companies, with special software and
online connections to your bank.
• A digital wallet
allows an individual to make electronic
commerce transactions. This can include purchasing items on-line
with a computer or using a smartphone to purchase something at a
store.
• E-commerce The buying and selling of products and services by
businesses and consumers through an electronic medium, without
using any paper documents.
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Videogames
• Photo sharing
• Downloading
• Music
• Movies
Downloading: transferring data from a
remote computer to one’s own
computer
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Hotels: use computer reservations
•
systems.
Law Enforcement: Officers use computers
• On patrol
• To check stolen cars
• To check criminal records
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Office careers: Budget, payroll, letter-writing,
•
•
email
Fashion: Sales/inventory control systems,
ordering, personnel
Job-hunting:
• Use word processor to create résumés
• Post résumés online
• Online job searches
Discussion Question: Can anyone think of a career that does not
require computer skills at all?
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
16
Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
The Telephone Grows Up
• 1973: First cellphone call
• Mobile phone use estimated to rise to 3.9
billion
users by 2013
• Today’s cellphones:
• Can connect to Internet & web for all sorts of
activities
• Can send and receive text messages
• Can take and send pictures, download music & video
• Can obtain news and TV programs
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Introduced in 1981
• Reached 10 million users in about one year
• Has been the fastest-growing technology
• 1998 surpassed hand-delivered mail
• In business, at least, email requires writing
skills
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Cyberspace
• Term coined by William Gibson in Neuromancer
(1984)
• Described a futuristic computer network people
“plugged” into directly with their brains
• Now the term cyberspace encompasses:
• The Internet & the World Wide Web in particular
• The wired and wireless communications world in general
• Thus, cyberspace includes chat rooms, blogs, ATMs,
conference calls, texting, etc.
• Two most important aspects: Internet
and web
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• Internet
• The worldwide computer network that links
thousands of smaller networks
• Links educational, commercial,
nonprofit, and military entities,
plus individuals
• Originally developed to share
only text and numeric data;
through the web now also
supports multimedia
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.
Introduction to Information Technology: Your Digital World
• World Wide Web
• The multimedia part
of the Internet
• An interconnected system of servers that support
specially formatted documents in multimedia
form
• Includes text, still images, moving images, sound
• Responsible for the growth and popularity of
the Internet
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Using Information Technology, 10e
© 2013 The McGraw-Hill Companies, Inc. All rights reserved.