高级IT英语读写教程-2

Contents Unit 1 Operating System1 Text A Operating System Activities3 Text B System Boot 23 Unit 2 Database System37 Text A History of Database Systems39 Text B Oracle 57 Unit 3 Computer Network69 Text A Network Software—Protocol Hierarchies 71 Text B Home Applications of Networks88 Unit 4 Programming 101 Text A Why Java?103 Text B Programming in C122 Unit 5 Office Application 135 Text A What Is Excel Good for?137 Text B A First Look at PowerPoint—Who Uses PowerPoint and Why? 153 Unit 6 Information Retrieval169 Text A IR at the Center of the Stage 171 Text B Relevance Feedback191 Unit 7 E-commerce ＆ E-government201 Text A Basic Functions of E-commerce Software203 Text B Electronic Government 220 Unit 8 Machine Learning231 Text A What Is Machine Learning233 Text B Examples of Machine Learning Applications 247 Glossary 261