大家背一下这些单词和句型，对考试也许有帮助的！！！！！UNIT ONE Introduction to ComputersText 1 The Computer System一． Vocabulary(词汇):device：装置cable：电缆instruction：指令terminal：终端hardware：硬件software：软件input：输入output：输出central processing unit(CPU)：中央处理器processor：处理器integrated circuits(IC)：集成电路printed circuit board：印刷电路板memory：存储器application program：应用程序programming language processor：计算机程序语言处理器operating system：操作系统resource：资源utilities(utility programs)：实用程序二． Important sentences(重点句):1．A computer system includes both hardware and software.2．A basic organization of a computer hardware system consists of an input device, an output device, memory and a Central Processing Unit (CPU). 3．Software products may be divided into four basic types: application programs, programming language processors, operating systems, and system utilities.4．Application programs allow you to perform such tasks as solving statistical problems, keeping your company's account books or playing a computer game.5．Programming language processors are programs that support the use of a computer language on a computer system.6．Operating systems are control programs that manage hardware and software resources and enable you to run application programs.7．System utilities are special programs that enhance the usefulness and capabilities of a computer.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1)硬件：hardware(2)软件：software(3)集成电路：integrated circuits(IC)(4)中央处理器：central processing unit(CPU)(5)应用软件：application software(6)应用程序：application program2．Translate the following screen messages into Chinese.(1)、(2)、(3).3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(2)、(3)、(4)、(5)、(6)、(7)、(8)4．Multiple Choice:(1)、C(2)、B(3)、B(4)、BUNIT ONE Introduction to ComputersText 2 System Components of Computers一、 Vocabulary(词汇):component：部件，元件image：图形printer：打印机cabinet：机箱chip：芯片silicon：硅片main memory：主存储器secondary storage：辅助存储器diskette drive：软驱display screen (or monitor)：显示器二． Important sentences(重点句):1．A computer system consists of four basic components : the Central Processing Unit(CPU), memory, input device and output device.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1)计算机系统：computer system(2)主存储器：main memory(3)辅助存储器：secondary storage(4)键盘：keyboard(5)显示器：display screen (or monitor)(6)数据：data2．Translate the following screen messages into Chinese.(1)、(2)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(3)、(4)4．True or False:(1)、F(3)、F(4)、T(5)、FUNIT ONE Introduction to ComputersText 3 The Evolution of Computers一、 Vocabulary(词汇):vacuum tube ：真空管silicon chip ：硅片large-scale ：大规模的integration ：集成chip circuitry ：芯片电路package ：封装auxiliary storage (=external storage or secondary storage) ：辅助存储器data ：数据magnetic disk ：磁盘memory capacity(=storage capacity) ：存储器容量microprocessor ：微处理器multiprogramming ：多道程序设计二、Important sentences(重点句):1． Modern electronic computers didn't appear until the 1940's. Research workers in America produced a working computer in 1946.2． The first-generation of computers were used from 1946 to 1959.They were characterized by the most prominent feature of the ENIAC-vacuum tubes, and were large, costly, expensive to power and often unreliable.3． The second-generation of computers spanned the years from 1959 through to 1964. The most notable change was that transistors replaced vacuumtubes.4． In addition, the second-generation computers were given auxiliary storage, sometimes called external or secondary storage.5． Third generation computers lasted from 1964 to 1971. Thethird-generation is marked chiefly by the development of integrated circuits, which replaced transistors.6． From 1971 to the present, we have fourth-generation computers.三、Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 电子管：vacuum tube(2) 晶体管：transistor(3) 磁带机：magnetic tape machine(4) 磁盘机：magnetic disk machine(5) 微处理器：microprocessor(6) 大规模集成电路：Large-scale integration circuits2．Translate the following screen messages into Chinese.(1)、 (8)、(9)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(3)、 (5)、(8)4．Mutiple Choice:(1)、B(2)、C(3)、B、D(4)、BUNIT ONE Introduction to ComputersText 4 Microcomputer Architecture一． Vocabulary(词汇):keyboard ：键盘printer ：打印机plotter ：绘图仪diskette ：软盘execute ：执行screen ：显示屏medium (pl. media) ：媒体，介质system ：系统motherboard ：母板，主板drive ：驱动器memory board ：内存板slot ：插槽bus ：总线bit ：位interface ：接口hard disk ：硬盘二． Important sentences(重点句):1．Most systems are constructed around a motherboard, which is a metal frameword containing a series of slots that are linked through a bus to an 8- or 16-bit processor.2．CPU: It is used to carry out a variety of essential data manipulation and controlling tasks in the heart of the computer.3．Main memory : It contains the programs the CPU is currently executing and the data these programs are operating on.4．Mass storage devices: The hard disk, floppy disk and magnetic tape drives are called mass storage devices, which hold data for long-term storage.5．Input/Output devices: The keyboard, CRT display (monitor), printer and XY-plotter are referred to as input/output devices.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 微型计算机：microcomputer(2) 母板：motherboard(3) 插槽：slot(4) 接口：interface(5) 硬盘驱动器：hard disk drive(6) 软盘驱动器：floppy disk drive2．Translate the following screen messages into Chinese.(1)、(2)、(3)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、 (3)、(4)、 (6)、 (8)4．Multiple Choice:(1)、Looking from outside, a microcomputer consists of a case, a keyboard,a monitor and a printer.(2)、To boot up a computer , you can either do a warm boot or a cold boot.(3)、The computer can use the binary number system to represent any character. By far, ASCII developed in USA, is the most widely used code.(4)、The main memory in a computer consists of RAM and ROM.(5)、A microcomputer has at least 640 kbytes of memory. 1 kbyte consists of 1024 bytes.UNIT ONE Introduction to ComputersText 5 Computer Viruses一、 Vocabulary(词汇):format ：格式化shell ：壳，外壳modify ：修改insert ：插入，嵌入extension ：扩展名version ：版本computer virus ：计算机病毒sector ：扇区intrusive virus ：入侵病毒RAM (Random Access Memory) ：随机存储器RAM-resident program ：内存驻留程序operating system virus ：操作系统病毒boot up ：引导shell virus ：外壳病毒source code virus ：源码病毒device driver ：设备驱动程序source program ：源程序host program ：主程序compile ：编译worm virus ：蠕虫病毒macro virus ：宏病毒二． Important sentences(重点句):1．Computer viruses are small programs designed to replicate (make exact copies of themselves) and spread, sometimes without giving any sign that they exist.2．Computer viruses can be classified by how they infect a system. There are four main types of viruses : shell , intrusive, operating system, and source code.3．Shell viruses wrap themselves around a host program and do not modify the original program code.4．Intrusive viruses invade an existing program and actually insert a portion of their code into the host program.5．Operating system viruses work by replacing parts of the operating system with their own logic.6．Source code viruses are intrusive programs that are inserted into a source program such as those written in Pascal prior to the program being compiled.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 病毒：virus(2) 恶性病毒：malicious virus(3) 外壳病毒：shell virus(4) 源代码：source code(5) 设备驱动程序：device driver(6) 传播：spread2．Translate the following screen messages into Chinese.(2)、(5)、(8)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(5)4．Multiple Choice :(1)、 A、C (注：现在的杀毒软件一般都具备病毒防火墙的功能)(2)、 C5．True or False:(1)、F(2)、F (注：如1999年4月26日爆发的CIH病毒就会烧毁主板或是硬盘) UNIT ONE Introduction to ComputersText 6 Multimedia Technology一、 Vocabulary(词汇):animation ：动画，动画片video ：视频audio ：声频compact disk ：光盘mouse ：鼠标器sound board ：声卡mixer ：混声器throughput ：吞吐率multimedia ：多媒体graphics ：图形optical storage ：光存储image processing ：图像处理CD-ROM drive ：光盘驱动器MPC (multimedia personal computer) ：多媒体个人电脑parallel ：并行serial ：串行joystick port ：游戏操纵杆控制端口VGA (Video Graphics Array) ：视频图形阵列(显示卡)resolution ：分辨率二、Important sentences(重点句):1． Multimedia, which typically refers to a synthesis of graphics,animation, optical storage, image processing, and sound, is not a single technology, product, or market.2． MPC stands for "multimedia personal computer".3． The requirements for an MPC are described in detail in Microsoft's Multimedia PC Specification Version 1.0.三、Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 多媒体：multimedia(2) 图形：graphics(3) 视频：video(4) 图像处理：image processing(5) 动画：animation(6) 光盘：compact disk3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(3)、(4)、(7)、(8)4．Answer the following questions briefly:(2)、OA(4)、A byte consist of 8 bits.(5)、In 1946, the first computer in the world ENIAC was developed. UNIT ONE Introduction to ComputersText 7 Compact Disk - Read Only Memory (CD-ROM)一． Vocabulary(词汇):digital ：数字的access ：存取laser ：激光reserve ：重新写入compact disk ：密集盘optical disk ：(=compact disk)光盘video player ：影像光盘机programmed search ：程序搜索memory facility ：记忆功能telephone directory ：电话簿postal address ：邮政地址二． Important sentences(重点句):1．New programs and data are 'burnt' onto the disc surface by a powerful laser.2．To read the information, a weaker laser is passed over the surface andthe reflected distortion from the dips forms the data which can be used for 'playback'.3．There are two types (standards) of optical disks :CD-I and CD-ROM.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 激光：laser(2) 英寸：inch(3) 只读存储器：ROM (Read Only Memory)(4) 搜索：search(5) 记忆：memory(6) 存取：access2．Translate the following screen messages into Chinese.(1)、(2)、(3)、(4)、(5)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(3)、(4)、(5)、(8)4．Answer the following questions briefly::(1)、What devices are usually used as secondary memory?Answer: hard disk, floppy disk, optical disk, magnetic tape(2)、What three categories do computer languages generally fall into? Answer: machine languages, assembly languages and high-level languages.(3)、What is the acronym for a double density diskette?Answer: DD(4)、How many bytes does a 'word' in the computer consist of ? Answer: 1,2,4 or more bytes.UNIT TWO Hardware and ConfigurationText 1 The Central Processing Unit(CPU)一、Vocabulary(词汇):manufacturer ：制造商performance ：性能megahertz(MHz) ：兆赫nanoseconds (ns) ：纳秒overclocking ：超频warranty ：保修upgrade ：升级configuration ：配置，设置microcomputer ：微型计算机arithmetic and logic unit (ALU) ：算术/逻辑部件(运算器)instruction counter ：指令计数器decoder ：译码器super-mini-computers ：超级小型机numerically coded instruction ：数字化编码的指令high-speed storage ：高速存储器primary storage ：(=main memory) 主存储器microprocessor-CPU based systems ：以微处理器为CPU的基本系统video-arcade game ：电子游戏digital TV ：数字电视二． Important sentences(重点句):1．The operations of a computer system are controlled by the CPU, which contains an arithmetic and logic unit (ALU), an instruction counter and a decoder.2．The speed at which the CPU operates is called the clock speed and is measured in megahertz(MHz).3．A clock cycle is the time that the CPU takes to perform instructions at a given clock speed.4．The CPU can operate at two different clock speeds : an internal speed for operations within the CPU, and an external speed for transferring data into and out of the CPU.5．Overclocking is a term generally used to describe how you have increased the clock frequency on your board to run your system at a higher speed. 6．Microprocessors have come a long way since 1971 when the first microprocessor, the Intel 4004, was developed.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 电子元件：electronic component(2) 算术逻辑单元：arithmetic and logic unit (ALU)(3) 硅片：silicon chip(4) 指令计数器：instruction counter(5) 时钟速度：clock speed(6) 译码器：decoder2．Translate the following screen messages into Chinese.(1)、(3) 、(4)、(8)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(4)、(5) 、(6)、(7)4．Answer the following questions briefly:(2) To which generation do the present-day computers belong? Answer: The fourth generation.UNIT TWO Hardware and ConfigurationText 2 Memory一、Vocabulary(词汇):account ：银行户头generate ：产生，建立subscriber ：订户word ：字overwrite ：覆盖二、Important sentences(重点句):1． The microcomputer's memory consists of main memory and secondary storage.2． The main memory of most computers is composed of random access memory (RAM) .3． Main memory on the computer is used to store instructions and data temporarily while the instructions are being executed and data are being processed.三、Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 随机存储器：Random Access Memory (RAM)(2) 只读存储器：Read Only Memory (ROM)(3) 主存储器：main memory(4) 辅助存储器：secondary storage(5) 标签：label(6) 指令：instruction2．Translate the following screen messages into Chinese.(1)、(3)、(4)、(9)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(4)、(7)4．Multiple Choice:(1)、 B(2)、 B(3)、 B(4)、 AUNIT TWO Hardware and ConfigurationText 3 The System Buses一、Vocabulary(词汇):origin ：起点destination ：终点address ：寻址byte ：字节nibble ：半字节address-bus ：地址总线register ：寄存器control-bus ：控制总线ISA (Industry Standard Architecture) ：工业标准结构EISA (Extended Industry Standard Architecture) ：扩展工业标准结构MCA (Micro Channel Architecture) ：微通道结构expansion bus ：扩展总线adapter ：适配器peripheral ：外部设备faxmodem (or modem) ：调制解调器graphics adapter ：图形适配器NIC (Network Interface Card) ：网络接口卡SCSI (Small Computer System Interface) ：小型计算机系统接口data bus ：数据总线data width ：数据宽度external speed ：外部速度VESA (Video Electronic Standards Association) ：视频电子标准协会PCI (Peripheral Component Interconnect) ：外围部件互连USB (Universal Serial Bus) ：通用串行总线二． Important sentences(重点句):1．The data bus transmits data between these units.2．The address bus is used to select the origin or destination of signals transmitted through one of the other buses.3．Traditionally, a standard address bus has 16 lines, that is to say, it can address 64 KB devices (1 KB =1024 in computer jargon ). 4．The control-bus is used for the synchronization of the system. 5．Memory is logically organized into words6．8 bits are called a byte, 4 bits a nibble; there is no other specific word for other sizes of words.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) data bus(2) address-bus(3) control-bus(4) transmit data(5) register(6) address unit2．Translate the following screen messages into Chinese.(1)、(8)、(9)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(3)、(4)4．Put in the missing words:(1)、A computer has two kinds of memory, called main memory and secondary memory.(2)、The most common microcomputer secondary storage medium is floppy disk and hard disk.(3)、In the computer, a byte consists of eight bits, representing 256 unique binary numbers.UNIT TWO Hardware and ConfigurationText 5 Floppy Disks一、Vocabulary(词汇):mainframe computer ：主机double density ：倍密度high density ：高密度extended-density ：扩展密度track density ：磁道密度read/write head ：读/写头read/write slot ：读/写槽口二． Important sentences(重点句):1．In 1972, IBM introduced flexible diskettes as a medium for loading programs into mainframe computers. Because the disks were so flexible, they were nicknamed floppy disk.2．Floppy disks , also called diskettes, are available in two size : 3.5 and 5.25 inches.3．Lower-capacity disk drives cannot read from and write to high-capacity disks.4．Floppy disk drivers are commonly referred to as the A drive and the B drive.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) floppy disk drive(2) medium(3) density(4) track(5) kilobyte(6) read/write head2．Translate the following screen messages into Chinese.(1)、(3) 、(4)、(9)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(6)、(8)UNIT TWO Hardware and ConfigurationText 6 Hard Disks一、 Vocabulary(词汇):gigabyte ：千兆字节，吉字节actuation arm ：存取臂access arm ：存取臂magnetic oxide material ：磁氧化材料cylinder ：柱面head ：磁头cylinder approach ：柱面操作方式二、Important sentences(重点句):1． Hard disks store data on rigid aluminum or ceramic platters, coated with a magnetic oxide material.2． Cylinders are concentric regions on the hard disk platter with cylinder 0 usually located at the outer edge.3． Cylinder numbers start at zero, so if your hard disk has 900 cylinders, they will be numbered from 0 - 899.4． The heads of a hard disk are used to read and write data.5． Head numbers start at zero, so if your drive has 9 heads, they will be numbered from 0 - 8.6． A sector is the smallest physically addressable unit of storage on a hard disk.7． Sector numbers start at one , so if your drive has 17 sectors on a track, they will be numbered from 1 to 17.三、Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 柱面：cylinder(2) 存取：access(3) 扇区：sector(4) 硬盘：hard disk(5) 千兆字节：gigabyte(6) 兆字节：megabyte2．Translate the following screen messages into Chinese.(1)、(4)、(8)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(4)、(6) 、 (7)、(8)4．True/False?(1)、Formatting erases all data on the disk.Answer: True(2)、A 360 KB floppy disk can store approximately 360,000 binary-coded Chinese characters.Answer: False(3)、A write-protected floppy disk cannot possibly carry a virus. Answer: False(4)、A floppy disk is an essential peripheral device; without which a computer cannot operate.Answer: FalseUNIT TWO Hardware and ConfigurationText 10 The Keyboard一、Vocabulary(词汇):keypad ：(数字键盘上的)小键punctuation ：标点符号character key ：字母键function key ：功能键numeric key ：数字键upper-case character ：大写字母lower-case character ：小写字母configure ：配置code sequence ：代码序列default code ：缺省代码auxiliary port ：辅助端口(AUX端口)carriage return ：回车linefeed ：换行space character ：空格ASCII ：American Standard Code for Information Interchange 美国信息互换标准代码二． Important sentences(重点句):1．A computer keyboard is so responsive that you can type using a light touch.2．The keys on the keyboard can be divided into three functional groups, known as the Character Keys, Function Keys, and Numeric Keys (on the keypad).3．The Function Keys are used to modify the operation of the terminal. 4．The Numeric Key Pad allows numbers to be entered in the same way you would use a calculator.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 键盘：keyboard(2) 大写字母：upper-case character(3) 功能键：function key(4) 打字机：typewriter(5) 回车：carriage return(6) 速率：speed2．Translate the following screen messages into Chinese.(3)、(4)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(2)、(3)、(4)4．Put in the missing words:(1)、Using DOS commands, you can type English letters either in( upper-case or lower-case). They will have the same effect either way.(2)、In a 24*24 dot matrix display , ( 72 ) bytes are used to represent the image of a Chinese character.(3)、The hexadecimal equivalent of decimal 53 is ( 35 ).UNIT TWO Hardware and ConfigurationText 11 Color Monitors一、Vocabulary(词汇):convergence ：聚集cabinet ：机壳outlet ：电源插座contrast ：对比度display tube ：显像管vertical/horizontal synchronization ：场/行同步output level ：输出电平analog ：模拟量video analog ：视频模拟TTL (transistor-transistor logic) ：晶体管－晶体管逻辑（电路）AC (alternating current) ：交流电max. (maximum) ：最大值min. (minimum) ：最小值female connector ：连接插座scanning frequency ：扫描频率H(Horizontal)-Phase ：行相位vertical-size ：场幅补充词汇：CRT(Cathode-Ray Tube) display ：阴级射线管显示器LCD (Liquid Crystal Display) ：液晶显示器plasma display ：等离子显示器二． Important sentences(重点句):1．The display area can be moved left or right (horizontally) by rotating the H-phase Control knob.2．The display can be moved up or down (vertically) by rotating the V-size Control knob三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 显示器：display /monitor(2) 显像管：display tube(3) 输出电平：output level(4) 扫描频率：scanning frequency(5) 场同步：vertical synchronization(6) 聚集：convergence2．Translate the following screen messages into Chinese.(2)、(3) 、(10)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(2)、(5)、(6)UNIT TWO Hardware and ConfigurationText 12 Printers一、 Vocabulary(词汇):humidity ：湿度parallel ：并行的compatible ：兼容机bubble jet printer ：喷墨打印机magnetic field ：磁场parallel interface ：并行接口interface cable ：接口电缆补充词汇：stylus printer ：针式打印机ink jet printer ：喷墨打印机laser printer ：激光打印机二、Important sentences(重点句):1． Most microcomputer printers print one character at a time, usually at rates ranging from approximately 30 to 180 characters per second. 2． A more reasonable approach is to use a line printer which, as the name implies, prints an entire line at one time instead of character by character.3． Even greater speed can be obtained by using a page printer to churn out complete pages at one time.三、Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 行式打印机：line printer(2) 喷墨打印机：bubble jet printer/ ink jet printer(3) 并行接口：parallel interface(4) 工作环境：operating environment(5) 磁场：magnetic field(6) 接口电缆：interface cable2．Translate the following screen messages into Chinese.(1)、(3)、(4)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(3)、(4)、(5)、(8)UNIT THREE Operating SystemsText 1 The Computer Operating System一、Vocabulary(词汇):time scale ：时段abstraction ：抽象program module ：程序模块operational software (= operating system software) ：操作系统软件logical gate ：逻辑门hierarchy ：多层次等级制listener program ：收听器程序disk head (= head or read/write head ) 读/写头二． Important sentences(重点句):1．The operating system is a collection of program modules that control and manage the system's hardware as well as its software resources, thus enabling you to run application programs on it.2．Operating systems are normally unique to their manufacturers and the hardware in which they are run.3．An operating system spans the entire range of complexity found in a computer system.4．The basic idea is to create a hierarchy of levels of abstraction so that at any level, the operating system module can ignore the details of what is going on at all lower levels.补充内容：主要操作系统软件制造商及其产品：（1） Microsoft Corporation (微软公司) : MS-DOS, Windows 3.2,Windows 9X 系列(Windows 95, Windows 97, Windows98, Windows 98 SE(Second Edition), Windows 98 ME(Millennium Edition))，Windows NT, Windows 2000, Windows XP 等（2） Unix操作系统：IBM (International Business Machines Corporation 国际商用机器公司): PC DOS, z/OS, AIX, OS/400, VM/ESA等SUN ( Standford University Network ) Microsystems (SUN 微系统公司) :Solaris（3） Apple Computer, Inc.（苹果公司）：Mac OS（4） Novell, Inc (Novell公司)：Netware系列（5） Linux操作系统(自由软件)：Red Hat, Inc.（红帽子公司）：Red Hat LinuxRedflag Software Co.,Ltd.（北京中科红旗软件技术有限公司）：红旗Linux Xteam Software (China) Co. Ltd.( Xteam(中国)软件技术有限公司)：XteamLinux中文版.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 操作系统：operating system(2) 应用软件：application software(3) 程序模块：program module(4) 策略：strategy(5) 软件资源：software resource(6) 隔绝：insulate2．Translate the following screen messages into Chinese.(4)、(6)、(10)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、 (3)、(4)、 (5)、(6)4．Answer the following questions briefly:(3)、What is the basic unit for measuring the storage capacity of a computer system?Answer: ByteUNIT THREE Operating SystemsText 2 Disk Operating System - MS-DOS一、Vocabulary(词汇):nucleus ：核心interface ：联系，接口acronym ：首字词command processor ：命令处理程序routine ：例行程序hardware-independent ：不依赖于硬件的device-dependent ：依赖于设备的programming code ：程序代码programming logic ：编程逻辑conventional memory ：常规内存transient module ：过渡模块二． Important sentences(重点句):1．The nucleus of microcomputer is its Operating System.2．The Operating System monitors and controls all input/output and processing activities within a computer system.3．DOS is an acronym for Disk Operating System.4．The best known Disk Operating System is MS-DOS, developed by Microsoft Corporation for the IBM-PC and compatible machines.三． Exercises(练习及参考答案):1．Translate the following words and expressions into English.(1) 核心：nucleus(2) 实用程序：utility program(3) 监督：monitor(4) 微软公司：Microsoft Corporation(5) 控制：control(6) 任选项：any option2．Translate the following screen messages into Chinese.(1)、(2) 、(7)3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:(1)、(3)、(6)4．Multiple Choice:(1)、__________ controls and manages the system's hardware and software resources, thus enabling a user to use his computer conveniently and efficiently.A． Application softwareB． Operating system softwareC． A text editing or word processing programD． Translator softwareAnswer: BUNIT THREE Operating SystemsText 9 Windows Modes and Basic Elements一、 Vocabulary(词汇):multitasking ：执行多任务的Graphical User Interface (GUI) ：用户图形接口icon ：图标scroll bar ：滚动棒dialog box ：对话框multimedia extension ：多媒体扩展protected mode ：保护模式real mode ：实模式enhanced mode ：增强模式program manager ：程序管理器modem ：调制解调器file manager ：文件管理器补充：resource manager ：资源管理器二、Important sentences(重点句):1． Microsoft Windows is a descendant of MS－DOS and an extension to MS-DOS developed by Microsoft.2． Windows provides a graphical user interface and standard methods for switching among applications, file and program management, windowing, icons, pull-down menus, scroll-bars and dialog boxes ( temporary windows) . 3． Windows is a multitasking operating system and has several advantages over MS-DOS.4． Microcomputers that use the Intel family of CPUS can run in two modes: protected mode and real mode.5． Windows runs in protected mode, but you can also choose to run it in two other modes: 386 enhanced mode and standard mode.6． When working in Windows, your main work area is the desktop.7． File Manager is a tool you can use to organize the files and directories in your computer.8． In File Manager, your files and directories are displayed in a directory window which is split into two parts : the left half displays the directory tree, and the right half displays the contents of the current directory.。
