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CHAPTER 1 Introduction to Computers 1

1．A World of Computers 1

2．What Is a Computer? 2

3．The Components of a Computer 2

4．Why Is a Computer So Powerful? 4

5．Networks and the Internet 4

6．Computer Software 5

7．Categories of Computers 7

8．Computer Applications in Society 7

9．Chapter Summary 8

Key Terms 9

Notes 10

Checkpoint 11

CHAPTER 2 The Internet and World Wide Web 13

1．The Internet 13

2．History of the Internet 13

3．How the Internet Works 13

4．The World Wide Web 14

5．Other Internet Services 18

6．Web Publishing 20

7．Chapter Summary 21

Key Terms 22

Notes 23

Checkpoint 24

CHAPTER 3 Application Software 26

1．Application Software 26

2．Common Application Softwares 28

3．Application Software for Communications 32

4．Learning Aids and Support Tools for Application Software 32

5．Chapter Summary 33

Key Terms 34

Notes 35

Checkpoint 36

CHAPTER 4 The Components of the System Unit 38

1．The System Unit 38

2．Processor 40

3．Data Representation 41

4．Memory 42

5．Expansion Slots and Adapter Cards 44

6．Ports and Connectors 45

7．Power Supply 47

8．Putting It All Together 47

9．Chapter Summary 47

Key Terms 48

Notes 49

Checkpoint 50

CHAPTER 5 Input 52

1．What Is Input? 52

2．What Are Input Devices? 52

3．The Keyboard 52

4．Pointing Devices 53

5．Mouse 54

6．Other Pointing Devices 55

7．Voice Input 57

8．Digital Cameras 57

9．Video Input 58

10．Scanners and Reading Devices 59

11．Putting It All Together 59

12．Chapter Summary 59

Key Terms 60

Notes 61

Checkpoint 62

CHAPTER 6 Output 64

1．What Is Output? 64

2．Display Devices 64

3．CFT Monitors 65

4．Flat-panel Displays 67

5．Printers 68

6．Speakers and Headsets 68

7．Other Output Devices 69

8．Chapter Summary 69

Key Terms 70

Notes 71

Checkpoint 72

CHAPTER 7 Storage 74

1．Storage 74

2．Floppy Disks 75

3．Hard Disks 76

4．CDs and DVDs 76

5．Tape 78

6．PC Cards 79

7．Miniature Mobile Storage Media 79

8．Chapter Summary 79

Key Terms 80

Notes 81

Checkpoint 82

CHAPTER 8　Operating Systems and Utility Programs 85

1．System Software　 85

2．Operating Systems　 85

3．Operating System Functions　 86

4．Operating System Utility Programs　 88

5．Types of Operating Systems 90

6．Stand-alone Operating Systems 90

7．Network Operating Systems 91

8．Embedded Operating Systems 92

9．Stand-alone Utility Programs 92

10．Chapter Summary 93

Key Terms 94

Notes 95

Checkpoint 96

Appendix 98

Solutions to Exercises 103