Unit 1 Computer and Computer Science（计算机与计算机科学） 1
Section A Computer Overview 1
Section B What Is Computer Science 11
Section C Categories of Computers 18
Unit 2 Computer Architecture（计算机体系结构） 25
Section A Computer Hardware 25
Section B Components of an Operating System 32
Section C System Organization 39
Unit 3 Computer Language and Programming（计算机语言与编程） 47
Section A Programming Language 47
Section B The Java Language 56
Section C Arrays 63
Unit 4 Software Development（软件开发） 70
Section A Computer Program 70
Section B Model Driven Development 80
Section C Distributed Systems 87
Unit 5 Software Process（软件过程） 95
Section A Software Process Models 95
Section B Software Testing Techniques 105
Section C What Is a Design Pattern 111
Unit 6 Database（数据库） 117
Section A Database Overview 117
Section B Maintaining Database Integrity 127
Section C Data Mining 133
Unit 7 Computer Network（计算机网络） 141
Section A Network Fundamentals 141
Section B A Guide to Network Topology 150
Section C Network Connecting Devices 156
Unit 8 The Internet（因特网） 162
Section A The Internet 162
Section B The Layered Approach to Internet Software 171
Section C Web Basics 178
Unit 9 Mobile and Cloud Computing（移动与云计算） 186
Section A Cloud Computing 186
Section B The Internet of Things 196
Section C Mobile Users 204
Unit 10 Computer Security（计算机安全） 210
Section A Computer Security 210
Section B Antivirus Software 219
Section C Types of Malicious Software 225
Unit 11 Cyberculture（计算机文化） 231
Section A Using E-Mail 231
Section B Designing Websites 241
Section C Social Issues of Computer Networks 250
Unit 12 Electronic Commerce（电子商务） 255
Section A Electronic Commerce 255
Section B Basic Functions of Electronic Commerce Software 265
Section C Online Shopping 272
Glossary（词汇表） 279
Abbreviations（缩略语表） 311