Part One 3
Unit One 3
Text Digital Communications 3
Reading Material A The Technology——MANs 6
Reading Material B Digital Communications Technology 7
Reading Material C Keypad 11
Unit Two 12
Text Antennas 12
Reading Material A Networking 15
Reading Material B Electrical Engineering 17
Reading Material C UFO 18
Unit Three 19
Text A Brief History of Satellite Communications 19
Reading Material A Satellite Communications 22
Reading Material B Microwave Communications System 24
Reading Material C Communication Satellite 26
Unit Four 27
Text Data Communication 27
Reading Material A Laser 30
Reading Material B Electricity-Generation and Transport 34
Reading Material C Light Waves 35
Test Yourself Ⅰ 37
Unit Five 41
Text Amplifiers 41
Reading Material A Facsimile Transmission 43
Reading Material B Fax via Email Cuts Costs 46
Reading Material C Water 46
Unit Six 48
Text Analog Communications 48
Reading Material A Facsimile Equipment 50
Reading Material B Video Conferencing 53
Reading Material C Pollution and Enviourament 53
Unit Seven 55
Text Semiconductors 55
Reading Material A Pulse Code Modulation 58
Reading Material B Communication Satellite Systems 61
Reading Material C A Trick for Trouble-shooting 62
Unit Eight 63
Text Optical Communications 63
Reading Material A Optical Fiber Communications 66
Reading Material B Put Your Business on the Internet 69
Reading Material C Laser and Communication 70
Test Yourself Ⅱ 71
Unit Nine 75
Text Electromagnetic Radiation 75
Reading Material A The Electro-Magnet 78
Reading Material B The Changing Role of the PBX 79
Reading Material C Crisis of Energy 82
Unit Ten 83
Text Electrical Measurements 83
Reading Material A Modern Means of Communication 85
Reading Material B ISDN 87
Reading Material C New Changing in Our Living 90
Unit Eleven 92
Text Digital Signal Processors and Its Applications 92
Reading Material A Speech Synthesis 96
Reading Material B Speech Recognition 98
Reading Material C Great Lakes 99
Unit Twelve 100
Text Modern Role of Cryptography 100
Reading Material A An Initial Hint on Foundations of Cryptography 104
Reading Material B Basis of Information Security 105
Reading Material C Saving Earth 106
Test Yourself Ⅲ 107
Unit Thirteen 111
Text Communication Network 111
Reading Material A Future Network Architectures and Their Services 114
Reading Material B Key Factors in Communication Network Evolution 116
Reading Material C Fresh Water 117
Unit Fourteen 119
Text Signal and System 119
Reading Material A Overview of Specific Systems(1) 124
Reading Material B Overview of Specific Systems(2) 125
Reading Material C Ecology 126
Unit Fifteen 127
Text Introduction of ISDN 127
Reading Material A Broadband ISDN 129
Reading Material B Network Management 133
Reading Material C Inner Ear 134
Unit Sixteen 135
Text Characteristics of Communication Channels 135
Reading Material A How Computer Viruses Spread 138
Reading Material B Using a Mouse 141
Reading Material C Microprobe 143
Test Yourself Ⅳ 144
Final Test(A) 147
Final Test(B) 151
Part Two 157
课文与部分阅读材料参考译文 157
Appendix Ⅰ "An overview of what make up an information system:people,procedures,software,hardware and data" 179
Appendix Ⅱ Vocabulary 184
Appendix Ⅲ Terminology Practice and Applications 210
Appendix Ⅳ The following is a list abbreviations which appear in the text 228
Appendix Ⅴ Abbreviations for Network 231
Appendix Ⅵ Terminology for Electronics and Communications 244
参考文献 264