计算机英语PDF电子书下载

Unit One 1

Lesson One History of Computer Development 1

Text A The Brief History of the Computer 1

Text B The ENIAC 11

Lesson Two Computer Basics 15

Text A Primary Components of a Microcomputer 15

Text B Computers—Our Good Friends 22

Unit Two 26

Lesson Three Computer Hardware 26

Text A Hardware 26

Text B Hardware Installation 34

Lesson Four Computer Software 38

Text A Computer Software 38

Text B Offices Software 46

Lesson Five Operating System 50

Text A Operating System 50

Text B Windows XP 58

Lesson Six Office Automation 62

Text A Office Automation 62

Text B Microsoft Office 2003 71

Unit Three 74

Lesson Seven Programming Languages 74

Text A Programs and Programming Languages 74

Text B The Java Programming Language 82

Lesson Eight Database 85

Text A Definition of a Database 85

Text B What is a Relational Database? 93

Unit Four 97

Lesson Nine Making a Web Page 97

Text A Making a Web Page 97

Text B How Web Pages Work 106

Lesson Ten Photoshop Basics 109

Text A What is Photoshop? 109

Text B A Brief Introduction to Computer Graphics 117

Lesson Eleven Multimedia Technology 121

Text A Multimedia 121

Text B Elements of multimedia 129

Unit Five 133

Lesson Twelve Network Basics 133

Text A Network Introduction 133

Text B Reference Models for Computer Networks 141

Lesson Thirteen Application of Internet 145

Text A A Brief Introduction to the Application of Internet 145

Text B An introduction to Blog 154

Lesson Fourteen E-commerce 158

Text A Introduction to E-commerce 158

Text B Internet Phone Calls 165

Lesson Fifteen Computer Viruses and Prevention 170

Text A Introduction to Computer Viruses 170

Text B Virus Prevention 178

Comprehensive Exercises 182

Appendix Ⅰ Translation 185

Appendix Ⅱ Key to the Exercises 204

Appendix Ⅲ Glossary 212

Appendix Ⅳ Phrases and Expressions 226

Appendix Ⅴ Common Abbreviation 228

References 233