Chapter One Definitions and History of Information Science Chapter Study Tasks (1) In this chapter, you will be able to -Identify the different definitions of information science

Chapter Four High-level Programming Languages e Part 1 Notes to Text m Part4 Extensive Reading o Part 2 Word Study Part5 Notes to Passage s Part3 Practice on Text Part6 Practice on Passage

Chapter Four Measures For Computer Security Firewall Antispyware Antivirus Antispam Unit 18 Part 1 Notes to Text

Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage

Chapter Two Data Processing Unit 5 Part 1 Notes to Text Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage Part4 Extensive Reading

一、信息的保密性 二、数据的完整性 三、用户身份的鉴别 四、数据原发者鉴别 五、数据源发者的不可抵赖性 六、合法用户的安全性

Unit7 Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage

Unit9 Part 1 Notes to Text Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage Part4 Extensive Reading

Unit8 Part 1 Notes to Text Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage Part4 Extensive Reading

Chapter Five Image Creation Unit 20 Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage