科技英语教程PDF电子书下载

PART ONECOMPUTER SCIENCE 3

Unit One 3

Text：Computer Systems History 3

Reading：PC History 6

Unit Two 9

Text：Delete keys—Clipboard Technology 9

Reading：Pentium Microprocessor Architecture Overview 12

Unit Three 17

Text：Programs and Programming Languages 17

Reading：What is Java? 20

Text：Data Structures（1） 25

Unit Four 25

Reading：Data Structures（2） 29

Unit Five 33

Text：The Program Development Cycle 33

Reading：Input Devices for Data Entry 37

Unit Six 40

Text：Preface to“Designing Screen Interface in C” 40

Reading：A RAM Primer 45

Unit Seven 51

Text：How Computer Viruses work 51

Reading：Common Virus Myths 57

Unit Eight 61

Text：Computer Networks 61

Reading：Introduction to LAN Building 64

Text：Database Technology 67

Unit Nine 67

Reading：Distributed Databases 70

Unit Ten 73

Text：Security Issues on the Internet 73

Reading：What You Should Know about a PC for Using Windows 80

Unit Eleven 86

Text：Identifying CPUs through Software 86

Reading：Introduction to Expert System 94

Unit Twelve 97

Text：Multimedia Systems：an Overview 97

Reading：What s an Operating System? 106

Text：Nonrandom rand（）Problems 110

Unit Thirteen 110

Reading：Automatic Generation of General Quadratic Map Basins 116

PART TWOTELECOMMUNICATIONS 125

Unit One 125

Text：Prefaces 125

Reading：Electrical devices 129

Unit Two 133

Text：Signals and Systems 133

Reading：Digital Communication System 137

Unit Three 141

Text：Introduction to“Communication Systems” 141

Reading：Modulation Schemes 147

Text：Television Receivers 152

Unit Four 152

Reading：Receivers 159

Unit Five 166

Text：Introduction to“Principles of Antenna Theory” 166

Reading：Carrier Propagation Channel 174

Unit Six 180

Text：Microwave and VHF/UHF Radio Systems 180

Reading：Cellular Phones 187

Unit Seven 192

Text：A1110E Multi-Phase Clock Buffer 192

Reading：Frequency Synthesizers Using Phase-locked Loop 198

Text：Single Chip Decoder Design for Large Numeric Displays 202

Unit Eight 202

Reading：Time Division Multiplexing 208

Unit Nine 213

Text：Security in Defence Communication Systems 213

Reading：Public Telephone Systems 220

Unit Ten 223

Text：A Story of Innovation and Change 223

Reading：Introduction to Satellite Communications 228

PART THREEMATHEMATICS 235

Unit One 235

Text：The History of Mathematics（1） 235

Reading：Mathematics—Our Invisible Culture 240

Unit Two 243

Text：The History of Mathematics（2） 243

Reading：Science or Art? 248

Text：The History of Mathematics（3） 251

Unit Three 251

Reading：Euclid ＆ Hilbert 257

Unit Four 260

Text：Introduction To Mathematical Analysis 260

Reading：The Historical Development of the Calculus 266

Unit Five 269

Text：Preface 269

Reading：Forewords 274

Unit Six 277

Text：Introduction 277

Reading：Definition of a Group 282

Text：Introduction to Probability 284

Unit Seven 284

Reading：What is Statistics? 288

Unit Eight 293

Text：Graph Theory 293

Reading：What is Combinatorics? 299

Unit Nine 302

Text：Preface 302

Reading：Operations Research—What It Is and What It Does 306

Unit Ten 310

Text：What is Modelling 310

Reading：Applied Mathematics as a Process 316

课文参考译文 321

参考文献 384