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Chapter 01

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Basic introduction to computers

Basic introduction to computers

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  • 1.
  • 2. Objectives Overview
    Discovering Computers 2012: Chapter 1
    2
    See Page 3
    for Detailed Objectives
  • 3. Objectives Overview
    Discovering Computers 2012: Chapter 1
    3
    See Page 3
    for Detailed Objectives
  • 4. A World of Computers
    Computers are everywhere
    Discovering Computers 2012: Chapter 1
    4
    Pages 4 - 5
    Figure 1-1
  • 5. What Is a Computer?
    A computer is an electronic device, operating under the control of instructions stored in its own memory
    Information Processing Cycle
    Discovering Computers 2012: Chapter 1
    5
    Page 6
  • 6. What Is a Computer?
    Discovering Computers 2012: Chapter 1
    6
    Page 6
    Figure 1-2
  • 7. The Components of a Computer
    A computer contains many electric, electronic, and mechanical components known as hardware
    Discovering Computers 2012: Chapter 1
    7
    Pages 6 - 8
  • 8. The Components of a Computer
    Discovering Computers 2012: Chapter 1
    8
    Page 7
    Figure 1-3
  • 9. Advantages and Disadvantages of Using Computers
    Advantages of Using Computers
    Disadvantages of Using Computers
    Discovering Computers 2012: Chapter 1
    9
    Pages 9 - 10
  • 10. Advantages and Disadvantages of Using Computers
    Green computinginvolves reducing the electricity consumed and environmental waste generated when using a computer
    Strategies include:
    Recycling
    Regulating manufacturing processes
    Extending the life of computers
    Immediately donating or properly disposing of replaced computers
    Discovering Computers 2012: Chapter 1
    10
    Page 10
  • 11. Networks and the Internet
    A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media
    Discovering Computers 2012: Chapter 1
    11
    Pages 10 - 11
    Figure 1-6
  • 12. Networks and the Internet
    The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
    Discovering Computers 2012: Chapter 1
    12
    Page 11
    Figure 1-7
  • 13. Networks and the Internet
    People use the Internet for a variety of reasons:
    Discovering Computers 2012: Chapter 1
    13
    Pages 12 - 13
    Figure 1-8
  • 14. Networks and the Internet
    A social networking Web siteencourages members to share their interests, ideas, stories, photos, music, and videos with other registered users
    Discovering Computers 2012: Chapter 1
    14
    Page 14
    Figure 1-9
  • 15. Computer Software
    Software, also called a program, tells the computer what tasks to perform and how to perform them
    Discovering Computers 2012: Chapter 1
    15
    Pages 15 - 16
    Figures 1-10 - 1-11
  • 16. Computer Software
    Installing is the process of setting up software to work with the computer, printer, and other hardware
    Discovering Computers 2012: Chapter 1
    16
    Pages 16 - 17
    Figure 1-12
  • 17. Computer Software
    A programmer develops software or writes the instructions that direct the computer to process data into information
    Discovering Computers 2012: Chapter 1
    17
    Page 18
    Figure 1-13
  • 18. Categories of Computers
    Discovering Computers 2012: Chapter 1
    18
    Page 19
  • 19. Personal Computers
    A personal computercan perform all of its input, processing, output, and storage activities by itself
    Two popular architectures are the PC and the Apple
    Desktop computer
    Discovering Computers 2012: Chapter 1
    19
    Pages 19 - 20
    Figures 1-15 - 1-16
  • 20. Mobile Computers and Mobile Devices
    Discovering Computers 2012: Chapter 1
    20
    Pages 20 - 23
  • 21. Mobile Computers and Mobile Devices
    Discovering Computers 2012: Chapter 1
    21
    Pages 20 - 22
    Figures 1-17 – 1-20
  • 22. Mobile Computers and Mobile Devices
    Discovering Computers 2012: Chapter 1
    22
    Pages 22 - 23
    Figures 1-21 – 1-23
  • 23. Game Consoles
    A game consoleis a mobile computing device designed for single-player or multiplayer video games
    Discovering Computers 2012: Chapter 1
    23
    Page 24
    Figure 1-24
  • 24. Servers
    A server controls access to the hardware, software, and other resources on a network
    Provides a centralized storage area for programs, data, and information
    Discovering Computers 2012: Chapter 1
    24
    Page 25
    Figure 1-25
  • 25. Mainframes
    A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously
    Discovering Computers 2012: Chapter 1
    25
    Page 25
    Figure 1-26
  • 26. Supercomputers
    A supercomputer is the fastest, most powerful computer
    Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second
    Discovering Computers 2012: Chapter 1
    26
    Page 25
    Figure 1-27
  • 27. Embedded Computers
    An embedded computeris a special-purpose computer that functions as a component in a larger product
    Discovering Computers 2012: Chapter 1
    27
    Page 26
  • 28. Embedded Computers
    Discovering Computers 2012: Chapter 1
    28
    Page 26
    Figure 1-28
  • 29. Elements of an Information System
    Discovering Computers 2012: Chapter 1
    29
    Page 27
  • 30. Elements of an Information System
    Discovering Computers 2012: Chapter 1
    30
    Page 27
    Figure 1-29
  • 31. Examples of Computer Usage
    Discovering Computers 2012: Chapter 1
    31
    Pages 28 – 31
    Figures 1-30 – 1-32
  • 32. Examples of Computer Usage
    Discovering Computers 2012: Chapter 1
    32
    Pages 31 – 32
    Figures 1-33 – 1-34
  • 33. Computer Applications in Society
    Discovering Computers 2012: Chapter 1
    33
    Pages 34 - 36
    Figures 1-36 – 1-39
  • 34. Computer Applications in Society
    Discovering Computers 2012: Chapter 1
    34
    Pages 36 - 38
    Figures 1-40 – 1-43
  • 35. Video: Computer History in a Barn
    CLICK TO START
    Discovering Computers 2012: Chapter 1
    35
  • 36. Summary
    Discovering Computers 2012: Chapter 1
    36
    Page 39
  • 37. Chapter 1 Complete