Chapter 1 Introduction to Information Technology 1
1.1 Digital Computer 1
1.2 Evolution of Computers 2
1.3 Types of Computers 7
1.4 Data Type 10
1.5 Information Systems 11
Chapter 2 System Software 17
2.1 System Software 17
2.2 Operating Systems 18
2.3 Utilities 21
2.4 Device Drivers 22
2.5 Programming Languages and Translators 23
Chapter 3 Application Software 30
3.1 Application Software 30
3.2 Common Features of Application Software 31
3.3 Browsers 33
3.4 Word Processors 34
3.5 Spreadsheets 35
3.6 Database Management Systems 36
3.7 Presentation Graphics 37
3.8 Software Suites 38
4.1 System Unit 46
Chapter 4 System Unit 46
4.2 System Board 47
4.3 Microprocessor 48
4.4 Memory 50
4.5 System Clock 51
4.6 Bus Lines 51
4.7 Ports and Cables 52
5.1 Input Devices 58
5.2 Keyboards 58
Chapter 5 Input Devices 58
5.3 Mice 59
5.4 Touch Screens 60
5.5 Scanners 61
5.6 Voice Recognition Devices 62
Chapter 6 Output Devices 67
6.1 Output devices 67
6.2 Monitors 68
6.3 Printers 69
6.4 Audio-Output Devices 71
7.2 Floppy Disks 78
Chapter 7 Secondary Storage 78
7.1 Secondary Storage 78
7.3 Hard Disks 80
7.4 Optical Disks 82
7.5 USB Flash Drives 83
Chapter 8 Communication System 89
8.1 Communication System 89
8.2 Communication Media 90
8.3 Connection Devices 93
8.4 Communication Technology 95
8.5 Data Transmission 98
Chapter 9 Computer Network 106
9.1 Computer Network 106
9.2 Network Architecture 106
9.3 Network Topology 108
9.4 Categories of Networks 109
Chapter 10 Internet 115
10.1 The Internet and the Web 115
10.2 Internet Service Providers 117
10.3 Internet Address and Domain 118
10.4 E-mail 119
10.5 Search Engines 123
10.6 Web Utilities 124
Chapter 11 Electronic Commerce and Security 131
11.1 Electronic Commerce 131
11.2 Types of Electronic Commerce 132
11.3 Web Storefronts 133
11.4 Web Auctions 134
11.5 Electronic Data Interchange 135
11.6 Security,Privacy,and Trust in Electronic Commerce 135
12.2 System Analysts 142
Chapter 12 Careers in Information Systems 142
12.1 Careers in Information Systems 142
12.3 Webmasters 143
12.4 Database Administrators 144
12.5 Programmers 144
12.6 Network Managers 144
12.7 Computer Support Specialists 145
12.8 A Look to the Future 146
Appendix 152
World List 152