目录 Part 1 Knowledge Pointe Text 1 In+roduotion to Informafion Teohnology 1.1 Computer Literacy 1.2 Information System 1.3 Information Technology (IT) 1.4 What is a Computer 1.5 Components of a Computer 1.5.1 Hardware 1.5.2 Software 1.6 Categories of Computers 1.6.1 Supercomputers 1.6.2 Mainframe Computers 1.6.3 Midrange Computers 1.6.4 Minicomputers 1.6.5 Personal Computers Text 2 System Unit 2.1 Central Processing Unit (CPU) 2.1.1 Control Unit 2.1.2 Arithmetic and Logic Unit 2.1.3 Registers 2.1.4 Characteristics of CPU 2.2 Memory 2.2.1 Computer Memory Cell 2.2.2 Types of Memory 2.2.3 RAM 2.2.4 Cache 2.2.5 ROM 2.2.6 Virtual Memory 2.3 Ports and Connectors 2.3.1 Serial Ports 2.3.2 Parallel Ports 2.3.3 SCSI Ports 2.3.4 USB Ports 2.3.5 PC Card Slots Text 3 Input and Output 3.1 Input 3.1.1 Input Devices 3.1.2 Keyboards 3.1.3 Pointing Devices 3.1.4 Voice Input 3.1.5 Digital Cameras 3.1.6 Video Input 3.1.7 Scanning and Reading Devices 3.1.8 Terminals 3.1.9 Biometric Input 3.2 Output 3.2.1 Output Devices 3.2.2 Printers 3.2.3 Speakers and Headphones 3.2.4 Other Output Devices 3.2.5 Important Concepts Text 4 Secondary Storage 第二部分 参考译文 第三部分 习题与思考 第四部分 实践指导 第五部分 复习题 参考文献
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