计算机技术及应用英语PDF电子书下载

Preface 1

Unit One BRIEF INTRODUCTION TO COMPUTER SYSTEMS 3

Lesson One Computer Generations 3

Lesson Two Basic Components And Their Functions 16

Lesson Three Basic Architectures Of Computer Systems 34

Lesson Four Classification Of Computer Systems And Applications 54

Language Focus A Making Predictions 68

Unit Two BASIS OF COMPUTER HARDWARE AND SOFTWARE 75

Lesson Five Numbering Systems And Their Arithmetic Operations 75

Lesson Six Information Representation 85

Lesson Seven Boolean Algebra,Electronic Circuits And Logical Devices 93

Lesson Eight Data Structures,Algorithms,And Complexity Measures 108

Language Focus B Causes And Effects（1） 128

Unit Three LANGUAGES AND PROGRAM DESIGN 135

Lesson Nine History Of Programming Languages And Their Types 135

Lesson Ten Concepts And Procedures Of Programming 151

Lesson Eleven Program Design Using A Simplified PASCAL Language 159

Lesson Twelve New Development Of High-Level Languages 176

Language Focus C Causes And Effects（2） 186

Unit Four SYSTEM SOFTWARE AND FUNCTIONS 193

Lesson Thirteen Brief Introduction To Operating Systems 193

Lesson Fourteen Details About DOS And Windows 206

Lesson Fifteen User Interface,Operating Environments And SpecialTools 220

Language Focus D Abstracts 233

Unit Five INTRODUCTION TO COMPUTER ENGINEERING 243

Lesson Sixteen How To Select A Computer System 243

Lesson Seventeen How To Develop Computer-Based Applications Systems 257

Lesson Eighteen Tools And Techniques For Assisting The Development Of Software 281

Language Focus E Graphics Understanding 294

Unit Six DISTRIBUTED SYSTEMS AND OFFICE AUTOMATION 305

Lesson Nineteen Introduction To Distributed Systems 305

Lesson Twenty Computer Networks 320

Lesson Twenty-One Types Of Database And Distributed Databases 334

Lesson Twenty-Two Today's Office Automation 344

Language Focus F Translation Principles 352

Unit Seven ADVANCED COMPUTER TECHNOLOGIES 363

Lesson Twenty-Three Introduction To Multimedia PC 363

Lesson Twenty-Four Artificial Intelligence,Expert Systems,And Virtual Reality 376

Lesson Twenty-Five Object Oriented Programming Technologies In 1990s 390

Lesson Twenty-Six Robot And Automation 401

References 416

Answers Sheet 420