Unit One Ⅰ.Reading and Comprehension: What Is a Computer? Ⅱ.Reading and Practice: The Computer Ⅲ.Reading and Translation: 1)What Are Computers? 2)The Electronic Computer Unit Two Ⅰ.Reading and Comprehension: Computer Generations Ⅱ.Reading and Practice: History of Computers Ⅲ.Reading and Translation: 1)The Development of Computers 2)From Abaci to Computers Unit Three Ⅰ.Reading and Comprehension: Components and Types of Computers Ⅱ.Reading and Practice: Computer Systems Ⅲ.Reading and Translation: 1)The Types and Operation of Computers 2)The Kinds of Computers Unit Four Ⅰ.Reading and Comprehension: What Is a Processor? Ⅱ.Reading and Practice: The Central Processing Unit Ⅲ.Reading and Translation: 1)The Processor 2)Arithmetic Units and Control Units Unit Five Ⅰ.Reading and Comprehension: Main Memory Ⅱ.Reading and Practice: Types of Memory Ⅲ.Reading and Translation: 1)The Virtual Storage 2)Mass Storage - Future Trends Unit Six Ⅰ.Reading and Comprehension: Input and Output Ⅱ.Reading and Practice: Input and Output Units Ⅲ.Reading and Translation: 1)Feeding the Computer 2)Visual Display Output Unit Seven Ⅰ.Reading and Comprehension: Computer Architecture Ⅱ.Reading and Practice: Microcomputers Ⅲ.Reading and Translation: 1)The Invisible Computer 2)The Virtual Machine Unit Eight Ⅰ.Reading and Comprehension: The Binary System Ⅱ.Reading and Practice: Computer Arithmetic Ⅲ.Reading and Translation: 1)Algorithms and Complexity 2)Measures of Efficiency Unit Nine Ⅰ.Reading and Comprehension: Accessing Data Ⅱ.Reading and Practice: Data Processing Ⅲ.Reading and Translation: 1)Data Types 2)Data Structures Unit Ten Ⅰ.Reading and Comprehension: The Operating System Ⅱ.Reading and Practice-: Disks and Disk Drives Ⅲ.Reading and Translation: 1)Characteristics of Operating System 2)The Disk Operating System(DOS) Unit Eleven Ⅰ.Reading and Comprehension: Program Ⅱ.Reading and Practice: Multiprogramming Operating Systems Ⅲ.Reading and Translation: 1)Compilers 2)Testing Programs at the Console Unit Twelve Ⅰ.Reading and Comprehension: Programming Languages Ⅱ.Reading and Practice: Programming Languages and Libraries Ⅲ.Reading and Translation: 1)Programs and Programming Languages 2)Programming Languages Unit Thirteen Unit Fourteen Unit Fifteen Glossary