Unit Thirteen 144
Text A Computer:Getting Started 144
Text B History of Information Age 152
Unit Fourteen 156
Text A The Processor 156
Text B Twenty—first Century Science and Technology 164
Unit Fifteen 169
Text A Main Memory 169
Text B How Computers Are Changing Our World 177
Unit Sixteen 181
Text A Secondary Storage 181
Text B The age of automation 190
Unit Seventeen 195
Text A Input and Output 195
Text B The Social Consequence of Engineering 204
Unit Eighteen 208
Text A The Operating System 208
Text B The Advances in Biomechanics and its Prospect 219
Unit Nineteen 223
Text A Programming Language 223
Text B Crime Busting Computers 231
Unit Twenty 235
Text A Multimedia Technology 235
Text B Machines with and without Freedom 244
Unit Twenty-one 251
Text A Computer Networks 251
Text B Robot 261
Unit Twenty-two 267
Text A Computer Security 267
Text B A Robot about the house 277
Unit Twenty-three 281
Text A What's an Intranet? 281
Text B Office Automation 298
Unit Twenty-four 293
Text A Modern Cryptography 293
Text B Research Report for Business and Technical Writing 300