Unit 1 Computer System 1
Unit 2 Host Computer 12
Unit 3 I/O device 23
Unit 4 Computer Secondary Storage 33
Unit 5 Computer Number System 42
Unit 6 Software System 51
Unit 7 The Windows Desktop 62
Unit 8 Multimedia 73
Unit 9 Computer Networking 83
Unit 10 A computer Virus and Safety 92
Prompt or Messages 103
Translation and references 107
Vocabulary 172
参考书目及网站 191