1. Chapter 1 Introduction to Computers

2. A World of Computers Notable Technology Prognostications
“I think there is a world market for maybe five computers.”
Thomas Watson, Chairman of IBM, 1943
“Computers in the future may weigh no more than one and a half tons.”
Popular Mechanics, 1949
“There is no reason anyone would want a computer in their home.”
Ken Olson, President of DEC, 1977

3. Overview
Explain Computer Literacy Define Computer Identify Computer Components Differentiate Computer Platforms Advantages and Disadvantages

4. A World of Computers What is computer literacy?
Knowledge and understanding of computers and their uses
Dynamic definition
p. 4-5 Fig. 1-1
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5. Literacy
The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.
Alvin Toffler
Born 1923 –technology and its impact

6. What Is a Computer? How is a computer defined?
Electronic device operating under the control of instructions stored in its own memory
Accepts data
Raw facts, figures, and symbols
Processes data
Produces and stores information
Data that is organized, meaningful, and useful
p. 6
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7. How Computers Work
I use this slide to explain that the term computer can also refer to the CPU itself. It’s an old slide, but I want to show students that even though the hardware changes, the way a computer basically works doesn’t.

8. Hardware Input Devices Used to Enter Data & Instructions Keyboard
Mouse
Scanner
Digital Camera
Video Camera
Microphone

9. Hardware Output Devices Conveys Information to User Monitor Printer
Speakers

10. Hardware
System Unit
Box-like Device that contains electronic components
Connected to Motherboard
How does a tower differ?

11. Hardware Storage Holds Data & Instructions for Future Use Media Device
Physical Material
Device
Reads / Writes Data

12. Microcomputers
What are the two most popular styles of desktop computers?
PC and compatibles use the Windows operating system
Apple Macintosh usually uses the Macintosh operating system (Mac OS X)
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Personal Computers below Chapter 1
p. 19 Figs. 1-15–1-16
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13. Computer Platforms Platform Size Users Price Microcomputer (PC) Desk 1
< $5,000
Mobile
Lap / Hand
Game Console
1 – 2+
< $1,000
Embedded
Miniature
Included in Item Price
Server
Cabinet
2 – 1,000
$1,000 - $1,000,000
Mainframe
Room
100 – 1,000+
$300,000 - $1,000,000+
Sabre = 14000/s
Supercomputer
$1,000,000 +
Kasparov
Embedded – user has no control; microprocessor that works in larger product such as home automation devices; cars; office machines 13

14. Platforms
Mobile Computers
Notebook
Formerly Laptop
Tablet

15. Platforms
Mobile Computers
PDA
Smart Phone
Handheld
i-Phone

16. Game Consoles What are game consoles?
Mobile computing device designed for single-player or multiplayer video games
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17. Servers What types of servers are there?
A network server controls access to network resources and provides centralized storage
Mainframe Very powerful, expensive computer that supports thousands of connected users
Supercomputer The fastest, most powerful, most expensive computer. Used for applications requiring complex mathematical calculations
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18. Embedded Computers What is an embedded computer?
A special-purpose computer that functions as a component in a larger product
component
component
larger product
component
p. 24 Fig. 1-26
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19. Embedded Computers
Page 26
Figure 1-28

20. Software
Programs
Series of Instructions
Tells Computer What to Do

21. Data and Programs
Data
$ 90.52
Program $
Information 2 . 5 9

22. AUDIO TEXT Types of Data GRAPHICS VIDEO characters or numbers
any sound including
speech and music
TEXT
characters or numbers
VIDEO
GRAPHICS
Computer-generated
images
Motion images

23. Advantages
Computer Advantages Speed Reliability Consistency Storage Communications

24. Disadvantages
Computer Disadvantages Violation of Privacy Crime Impact on Labor Force Health Risks Impact on Environment

25. Industry Applications
Education
Distance Learning
Finance
Online Banking & Investing, Tax Prep
Government
911 Dispatching, FBI
Healthcare
Electronic Patient Records, telemedicine

26. Industry Applications
Publishing
E-books, PDF Manuals, MP3s
Travel
Navigation Systems, Reservations, E-tickets
Manufacturing
Production, Inventory, Quality Control

27. Examples of Computer Usage
What software is available for a home user?
Personal finance management
Web access
Communications
Entertainment
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Women in Technology below Chapter 1
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Minorities in Technology below Chapter 1
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p. 26 Fig. 1-28

28. Examples of Computer Usage
What software is available for a small office/home office (SOHO) user?
Productivity software
Specialty software
Web usage
p. 28 Fig. 1-30
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29. Examples of Computer Usage
What is available for a mobile user?
Hardware
Notebook computers
Tablet PCs
Internet-enabled PDAs
Smart phones
Software
Word processing
Spreadsheet
Presentation graphics software
p. 29 Fig. 1-31
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30. Examples of Computer Usage
What are the needs of a power user?
Speed and large amounts of storage
Types of power users
Engineers
Scientists
Architects
Desktop publishers
Graphic artists
p. 29 Fig. 1-32
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31. Examples of Computer Usage
What are the needs of the large business user?
Payroll
Inventory
E-commerce
Desktop publishing
p. 30 Figs. 1-33
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32. Summary of Introduction to Computers
Basic computer concepts
The uses of the Internet
The term, computer
Computer software
The components of a computer
Categories of computers
The advantages and disadvantages of using computers
Types of computer users
The purpose of a network
Computer applications in society
Chapter 1 Complete