计算机英语PDF电子书下载

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编写说明 1

前言 1

Unit One Introduction To Computer 1

1 What Is a Computer System 1

2 The Evolution of Computers 6

3 Types of Computer Systems 11

Reading Material 15

Translation of The Text 16

Unit Two Computer Hardware 19

1 A Basic Microcomputer Organization 19

2 The Central Processing Unit 24

3 The Memory Unit 28

4 Secondary Storage 32

5 The Computer Input/Output System 37

Reading Material 43

Translation of The Text 44

Unit Three Computer Software 47

1 Software 47

2 Operating System 52

3 Disk Operating System 56

4 Microsoft Windows 61

Reading Material 66

Translation of The Text 67

Unit Four Program Design 70

1 Programming Languages 70

2 The Program Development Process 75

Reading Material 80

Translation of The Text 81

1 Database Technology 84

Unit Five Database 84

2 The Architecture of a DBMS 89

3 Data Independence,Integrity and Security 94

Reading Material 99

Translation of The Text 100

Unit Six Network 103

1 Growth of Computer Networking 103

2 Computer Networks 107

3 Networks Advantages 113

4 Using a Modem 118

Reading Material 123

Translation of The Text 124

1 Office Automation 128

Unit Seven Applications of Computers 128

2 Multimedia 133

3 Computers in Science 138

Reading Material 142

Translation of The Text 143

Unit Eight Computer Virus 146

1 What Is a Virus？ 146

2 What Kinds of Viruses Are There？ 150

3 Protecting Your Computer Data Against Viruses 153

Reading Material 157

Translation of The Text 158

附录 计算机常用术语 160

主要参考书目 175

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