计算机英语PDF电子书下载

Unit 1　Today's Computer 1

Dialogue 2

Text A　Computer:An Important Role in People's Lives 2

Text B　Networks and the Internet 8

Exercises 14

Unit 2　The Elements of Hardware 16

Dialogue 17

Text A　Inside the System Unit 18

Text B　Storage Systems 24

Text C　Input and Output 34

Exercises 43

Unit 3　Starting a Computer 46

Dialogue 47

Text A　Using the Windows Operating System 47

Text B　E-mail and Downloading 62

Exercises 69

Unit 4　The Elements of the Internet and Web 72

Dialogue 73

Text A　Introduction of the Internet and World Wide Web 73

Text B　How to Surf the Web 77

Exercises 83

Unit 5　Systems Software 85

Dialogue 86

Text A　Windows 87

Text B　Other Operating Systems 93

Exercises 97

Unit 6　Application Software 99

Dialogue 100

Text A　What is Application Software 100

Text B　Adobe Flash,P2P MSN Messenger and Skype 105

Exercises 114

Unit 7　Networks 117

Dialogue 118

Text A　What is a Network 118

Text B　How Networks Work 123

Exercises 131

Unit 8　The Internet and World Wide Web 135

Dialogue 136

Text A　Internet Connectivity Issues 136

Text B　Searching the Internet 140

Text C　Online Shopping,TV Movies and Music,Blog and You Tube 143

Exercises 148

Unit 9　E-Business and E-Commerce 151

Dialogue 152

Text A　What is E-business and E-commerce 152

Text B　E-business Applications 157

Exercises 161

Unit 10　Database(A) 164

Dialogue 165

Text A　Introduction of Database 165

Text B　Data Concepts and Characteristics 169

Exercises 172

Unit 11　Database(B) 175

Dialogue 176

Text A　Database Models 176

Text B　Databases and the Web 181

Exercises 185

Unit 12　Social Issues 188

Dialogue 189

Text A　Computer Crime 189

Text B　Computer Security 194

Text C　Computer and Privacy 198

Exercises 201

参考答案 205

参考译文 206

参考文献 277