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Presentation Tips: - Click The Mouse To Advance The Slides - Click The Hyperlink To Directly Advance To The Slide
Presentation Tips: - Click The Mouse To Advance The Slides - Click The Hyperlink To Directly Advance To The Slide
1-1 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Chapter 1
Information
Technology, the
Internet, and You
Competencies (Page 1 of 2)
• Explain the five parts of an information system:
people, procedures, software, hardware, and data.
• Distinguish between system software and
application software.
• Discuss the three kinds of system software
programs.
• Distinguish between basic and specialized
application software.
• Identify the four types of computers and the four
type of microcomputers.
1-3 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Competencies (Page 2 of 2)
• Describe the different types of computer
hardware including the system unit, input/output,
secondary storage, and communication devices.
• Define data and describe document, worksheet,
database, and presentation files.
• Explain computer connectivity, the wireless
revolution, the Internet, and the Web.
1-4 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Introduction
• Computer competency refers to acquiring computer-
related skills
• Microcomputers are common tools in all areas of life
• Web courses are popular for people who are
homebound or work odd hours
• New ways to communicate, to find people with
similar interests, and to buy goods are available
Page
1-5 3 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Five Parts of an Information
System
1. People 4. Hardware
2. Procedures 5. Data
3. Software
1-6 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
People
• Most important part of any system
• Contact is …
– Direct
– Indirect
• Computer uses
– Business & Entertainment
– Education & Medicine
1-7 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Software
• Software is another name for programs
• Two major kinds of software
– System Software
– Application Software
1-8 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Hardware - Types of Computers
• Supercomputers
• Mainframe computers
• Minicomputers (also
known as mid-range
computers)
• Microcomputers
1-11 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Microcomputer Types
• Desktop
• Media center system units
• Notebook or laptop
• Netbooks
• Tablet PC
• Handheld
1-12 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Microcomputer Hardware
• Four basic categories of equipment:
– System Unit
– Input/output
– Secondary Storage
– Communication
1-18 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Netbooks
• Like laptops, but …
– Smaller
– Lighter
– Less expensive
Return
1-19 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Communications
• Communication Devices provide microcomputers
with the ability to communicate with other computer
systems across the globe
• The modem is the most widely used communication
device
• Modems modify telephone communications into a
form that can be processed by a computer
• Modems also modify computer output into a form
that can be transmitted across standard telephone
lines
1-23 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Data
• Raw, unprocessed facts
• Processed data becomes information
• Stored electronically in files
– Document files
– Worksheet files
– Database files
– Presentation files
1-24 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Connectivity, the Wireless
Revolution, and the Internet
• Connectivity
– Sharing of
information
– Wireless
communication has
widespread use
• Computer networks
– Connected
communication
system of computers
– Largest network is the
Internet
1-29 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Careers in IT
• For a complete listing of
careers, visit
http://www.computing2011
.com/ keyword: careers
1-30 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
A Look to the Future
• The Internet & Web
• Powerful Software
• Powerful Hardware
• Security & Privacy
• Organizations
• Changing Times
1-31 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Open-Ended Questions (Page 1 of 2)
• Explain the five parts of an information system. What
part do people play in this system?
1-32 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.
Open-Ended Questions (Page 2 of 2)
• Describe the different types of computers. What is
the most common type? What are the types of
microcomputers?
1-33 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.