全书共分10个单元，每个单元都包括课文、单词、练习、小知识点、基础语法等。课文是根据计算机系统结构要求的特点，内容由浅入深、由易到难、循序渐进、图文并茂，理论与实际操作相结合。这不仅使学生学到有关计算机专业方面的基本词汇、基本表达方法和较系统的英文计算机的知识，而且还能看计算机方面的简易文章，读计算机方面的简易手册等。
本书适用于中等职业学校计算机专业学生，也可作为短期培训的教材。

Unit 1 Introduction
* What is the Computer and the Internet?
How To Do：Improving Your Current System
How To Work：A Server
Grammar Focus：名词、代词、形容词及副词
Text in Chinese：计算机和因特网
Reading Selection : Processor
构词法(Ⅰ)
Practical Writing: 怎样写名片
Unit 2 System Software (Ⅰ)
* What is Software?
How To Do: Cleaning the Keyboard
How To Work: Channels
Grammar Focus：冠词、数词、连词及介词
Text in Chinese：系统软件
Reading Selection: Software
构词法(Ⅱ)
Practical Writing：留言便条和预约便条
Unit 3 System Software (Ⅱ)
* What is the Operating System?
How To Do ：Text Document
How To Work: The Video Capture Card
Grammar Focus: ���词时态和动词语态
Text in Chinese：操作系统
Reading Selection: MP3
构词法(Ⅲ)
Practical Writing：邀请函
Unit 4 Software Applications (Ⅰ)
* What are Software Applications?
How To Do：Using WinZip
How To Work: The Voice Recognition System
Grammar Focus: 非限定性动词
Text in Chinese：应用软件
Reading Selection: Programs
科技英语的语言特点(Ⅰ)
Practical Writing：咨询信
Unit 5 Software Applications (Ⅱ)
* What are Software Suites?
How To Do：Encrypt
How To Work：Internet Telephony Calls
Grammar Focus：虚拟语气
Text in Chinese：软件套装
Reading Selection: Online Learning
科技英语的语言特点(Ⅱ)
Practical Writing：感谢信
Unit 6 The System Unit
* What is the System Unit?
How To Do：A Virus
How To Work：MP3
Grammar Focus：名词性从句
Text in Chinese：系统装置
Reading Selection: Hardware on the Inside
科技英语的写作特点(Ⅰ)
Practical Writing：道歉信
Unit 7 Input
* What is Input?
How To Do：Printer
How To Work：Telephone Wiring System
Grammar Focus：定语从句
Text in Chinese：输入
Reading Selection: Making Connections
……
Unit 8 Output
Unit 9 Disk
Unit 10 Network
练习参考答案
Supplementary Words
一、初级常用词汇
二、常用专用词组
三、专业缩略语