计算机英语（第三版）刘艺王春生主编课后习题答案【一】
2010-04-14 13:47
Unit One/Section A
I. Fill in the blanks with the information given in the text:
1. Charles Babbage; Augusta Ada Byron
2. input; output
3. VLSI
4. workstations; mainframes
5. vacuum; transistors
6. instructions; software
7. digit; eight; byte
8. microminiaturization; chip
II. Translate the following terms or phrases from English into Chinese and vice versa:
1. artificial intelligence 人工智能
2. paper-tape reader 纸带阅读器
3. optical computer 光计算机
4. neural network 神经络
5. instruction set 指令集
6. parallel processing 并行处理
7. difference engine 差分机
8. versatile logical element 通用逻辑元件
9. sili substrate 硅衬底
10. vacuum tube 真空管
11. 数据的存储与处理 the storage and handling of data
12. 超大规模集成电路 very large-scale integrated circuit
13. 中央处理器 central processing unit
14. 个人计算机 personal computer
15. 模拟计算机 analogue computer
16. 数字计算机 digital computer
17. 通用计算机 general-purpose computer
18. 处理器芯片 processor chip
19. 操作指令 operating instructions
20. 输入设备 input device
III. Fill in each of the blanks with one of the words given in the following list, making
changes if necessary:
We can define a computer as a device that accepts input, processes data, stores data, and
produces output. According to the mode of processing, computers are either analog or digital.
They can also be classified as mainframes, minicomputers, workstations, or microcomputers.
All else (for example, the age of the machine) being equal, this categorization provides some
indication of the computer’s speed, size, cost, and abilities.
Ever since the advent of computers, there have been stant changes. First-generation
computers of historic significance, such as UNIVAC (通用自动计算机), introduced in the
early 1950s, were based on vacuum tubes. Sed-generation computers,
appearing in the
early 1960s, were those in which transistors replaced vacuum tubes. In third-generation
computers, dating from the 1960s, integrated circuits replaced transistors. In fourth-generation
computers such as microcomputers, which first appeared in the mid-1970s, large-scale
integration enabled thousands of circuits to be incorporated on one chip. Fifth-generation
computers are expected to combine very-large-scale integration with sophisticated approaches
to computing, including artificial intelligence and true distributed processing.
IV. Translate the following passage from English into Chinese:
计算机将变得更加先进，也将变得更加容易使用。语音识别的改进将使计算机的操
作更加容易。虚拟现实，即使用所有人类官能与计算机进行交互的技术，也将有助于创
建更好的人机接口。人们正在开发其他的奇异计算模型，包括使用生物机体的生物计算、
使用具有特定属性的分子的分子计算，以及使用遗传基本单位DNA（脱氧核糖核酸）存
储数据和执行操作的计算。这些都是可能的未来计算平台的例子，而它们迄今还能力有
限或完全属于理论范畴。科学家们研究它们，是因为嵌入硅中的电路的微小型化受到物
理限制。还有一些限制与甚至最微小的晶体管也会产生的热量有关。
Unit One/Section B
I. Fill in the blanks with the information given in the text:
1. experimentation
2. interfacing
3. interdisciplinary
4. microprocessor
II. Translate the following terms or phrases from English into Chinese and vice versa:
1. artificial neural network 人工神经络
2. computer architecture 计算机体系结构
3. robust computer program 健壮的计算机程序
4. human-computer interface 人机接口
5. knowledge representation 知识表示
6. 数值分析 numerical analysis
7. 程序设计环境 programming environment
8. 数据结构 data structure
9. 存储和检索信息 store and retrieve information
10. 虚拟现实 virtual reality
Unit One/Section C
I. Fill in the blanks with the information given in the text:
1. format
2. synchronization
3. virtual
4. multimedia; third-party
II. Translate the following terms or phrases from English into Chinese and vice versa:
1. data field 数据字段，数据域
2. learning curve 学习曲线
3. third-party solution 第三方解决方案
4. Windows Media Player Windows媒体播放器
5. 开始按钮 Start button
6. 指定输入区 designated input area
7. 手写体识别系统 handwriting-recognition system
8. 字符集 character set
Unit Two: Computer Architecture
Unit Two/Section A
I． Fill in the blanks with the information given in the text:
1. input; output; storage
2. Basic Input/Output System
3. flatbed scanners; hand-held scanners
4. LCD-based
5. dot-matrix printers; inkjet printers
6. disk drives; memory
7. volatile
8. serial; parallel
II. Translate the following terms or phrases from English into Chinese and vice versa:
1. function key 功能键，操作键
2. voice recognition module 语音识别模块
3. touch-sensitive region 触敏区
4. address bus 地址总线
5. flatbed scanner 平板扫描仪
6. dot-matrix printer 点阵打印机（针式打印机）
7. parallel nection 并行连接
8. cathode ray tube 阴极射线管
9. video game 电子游戏
10. audio signal 音频信号
11. 操作系统 operating system
12. 液晶显示（器） LCD (liquid crystal display)
13. 喷墨打印机 inkjet printer
14. 数据总线 data bus
15. 串行连接 serial nection
16. 易失性存储器 volatile memory
17. 激光打印机 laser printer
18. 磁盘驱动器 disk drive
19. 基本输入/输出系统 BIOS (Basic Input/Output System)
20. 视频显示器 video display
III. Fill in each of the blanks with one of the words given in the following list, making
changes if necessary:
CD-ROM stands for compact disc read-only memory. Unlike floppy and hard disks,
which use magnetic charges to represent 1s and 0s, optical discs use
reflected light. On a
CD-ROM disc, 1s and 0s are represented by flat areas and bumpy (高低不平的) areas (called
“pits”) on its bottom surface. The CD-ROM disc is read by a laser that projects a tiny beam of
light on these areas. The amount of reflected light determines whether the area represents a 1
or a 0.
Like a commercial CD found in music stores, a CD-ROM is a “read-only” disc.
Read-only means it cannot be written on or erased by the user. Thus, you as a user have
access only to the data imprinted (压印) by the publisher.
A single CD-ROM disc can store 650 megabytes (兆字节) of data. That is equivalent to
451 floppy disks. With that much information on a single disc, the time to retrieve or access
the information is very important. An important characteristic of CD-ROM drives is their
access rate.
IV. Translate the following passage from English into Chinese:
调制解调器是在模拟和数字信号之间进行转换的设备。计算机使用的是数字信号，
这种信号由离散单元组成，通常用一系列1和0表示。模拟信号是连续变化的；声波就是
模拟信号的一个例子。调制解调器经常用于实现计算机之间通过电话线的互相通信。调
制解调器将发送端计算机的数字信号转换成可通过电话线传输的模拟信号。信号到达目
1.Oral practice. Work in pairs and talk about what you have done for exercise. Omitted. 2.Fill in the blanks with proper forms of words and phrases given. (1)favorite (2)are good for (3)have prepared for (4)will compete (5)did well in 3.Drill three: Choose the best answer from the given choices. (1)B (2)B (3)C (4)A (5)B 习题册答案（Keys to the exercise book） Part One: Vocabulary 词汇 用所给的词或短语的正确形式填空。 Part A 1.honor 2.good for
3.Jogging 4.spend 5.except Part B 1.settings 2.Related 3.document 4.folder 5.menus Part Two: Grammar & Function 语法与功能1.在右列中找出可与左列对应的句子。 (1)E (2)D (3)B (4)C (5)A 2.从A、B、C、D选项中选择正确答案。 (1)A (2)A (3)C (4)A
(5)C (6)A (7)A (8)A (9)B (10)C Part Three: Translation 翻译 1.将下列短语翻译成英文。 (1)jogging in the playground every day (2)favorite singer (3)to join a sports meet (4)over 60 percent of market (5)all kinds of versions (6)by far 2.将下列句子翻译成中文。 (1)足球是你最喜爱的运动吗？ (2)夺冠固然光荣，但从运动中获得快乐更有价值。 (3)GUI是图形用户界面的缩写。 (4)桌面显示Windows里所有的工作。 (5)人们可以通过使用鼠标轻易地拖曳一个窗口并改变它的大小和位置。Part Four: Reading 阅读
计算机专业英语（第四版）课后习题答案 Unit 1 [Ex 1] 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10. F [Ex 2] 1. input, storage, processing, and output 2. power; speed; memory 3. central processing unit 4. internal; primary; memory 5. keyboard; central processing unit; main memory; monitor [Ex 3] A. 1. F 2. D 3. G 4. C 5. B 6. A 7. E 8. H B. 1. user 2. monitor 3. data 4. keyboard 5. data processing 6. information 7. computer 8. memory [Ex 4] 1. input device 2. screen, screen 3. manipulates 4. instructions 5. retrieve 6. code 7. hard copy 8. Function [Ex. 5] 新处理器开始IT技术的新时代 New Processors Open New Era of IT Technologies Last week, Intel introduced to the public in Russia and other CIS countries a family of processors Intel Xeon E5-2600. They are more powerful and reliable and, importantly, are very economical in terms of energy consumption. Their presence opens a new era in the field of IT technologies and means that the cloud technology is getting closer. These processors are primarily designed for servers, data centers (DPC) and supercomputers. The emergence of this class of devices is not accidental. According to the regional director of Intel in Russia and other CIS states Dmitri Konash who spoke at the event, the market of IT-technology is developing so rapidly that, according to forecasts, by 2015 there will be 15 billion devices connected to the Internet, and over 3 billion of active users. 上周，英特尔公司向俄罗斯和其它独联体国家的公众推出了英特尔Xeon E5-2600系列处理器，它们更加强大可靠，尤其是在能量消耗方面更加经济实惠。它们的问世意味着IT技术领域开始了一个新时代，标志着云技术距离我们越来越近。 这些处理器主要是为服务器、数字处理中心和超级计算机设计的。这种处理器的出现并非偶然。根据英特尔公司俄罗斯和其他独联体地区负责人Dmitri Konash就此事发表的看法，IT技术市场的发展速度极快，根据预测，到2015年与英特网连接的设施将有150亿，用户超过30亿。 [Ex 6] 1. T 2. T 3. F 4. F 5. T 6. F 7. T 8. F Unit 2 [Ex 1] 1. T 2. F 3. T 4. F 5. T 6. T 7. T 8. F [Ex 2] 1. sizes, shapes, processing capabilities
计算机专业英语题库1-0-8
[单选,共用题干题]Atransportlayerprotocolhasseveralresponsibilities,Oneistocreateaprocess-to-processprogram-to- programcommunication;TCPusesport1toaccomplishthis.Anotherresponsibilityofatransportlayerprotocolistocreatea2anderror- controlmechanismatthetransportlevel.TCPusesasliding3protocoltoachieveflowcontrol.Itusestheacknowledgmentpacket,time- out,andretransmissiontoachieve4control.Thetransportlayerisalsoresponsibleforprovidingaconnectionmechanismfortheapplicationprogram.Theapplicationprogramsends5ofdatatothetransportlayer.空白（1）处应选择（） A.A.numbers B.connection C.diagrams D.resources 传输层协议有多个职责。一是创建进程到进程（程序到程序）的通信，由TCP使用端口号来完成；另一个职责是在传输层创建流和差错控制机制。TCP利用滑动窗口 协议来实现流控制。它使用确认分组、超时、重传机制来完成差错控制。传输层也负责为应用程序提供连接机制，应用程序将数据流发送到传输层，发送端的传输 层负责建立于接收端之间的连接。
练习答案 PART ONE Computer Basics Unit 1 My Computer Section A I．Fill in the blanks with the information given in the text: 1．Charles Babbage; Augusta Ada Byron 2．input; output 3．VLSI 4．workstations; mainframes 5．vacuum; transistors 6．instructions; software 7．digit; eight; byte 8．microminiaturization; chip II．Translate the following terms or phrases from English into Chinese and vice versa: 1．artificial intelligence 人工智能 2．paper-tape reader 纸空阅读机 3．optical computer 光学计算机 4．neural network 神经网络 5．instruction set 指令集 6．parallel processing 平行处理 7．difference engine 差分机 8．versatile logical element 通用逻辑器件 9．silicon substrate 硅基 10．vacuum tube 真空管（电子管） 11．t he storage and handling of data 数据的存储与处理 12．very large-scale integrated circuit 超大规模集成电路 13．central processing unit 中央处理器 14．personal computer 个人计算机 15．analogue computer 模拟计算机 16．digital computer 数字计算机 17．general-purpose computer 通用计算机 18．processor chip 处理器芯片 19．operating instructions 操作指令 20．input device 输入设备 III．Fill in each of the blanks with one of the words given in the following list, making changes if necessary: We can define a computer as a device that accepts input, processes data, stores data, and produces output. According to the mode of processing, computers are either analog or digital. They can be classified as mainframes, minicomputers, workstations, or microcomputers. All else (for example, the age of the machine) being equal, this categorization provides some indication of the computer’s speed, size, cost, and abilities.
计算机专业英语模拟2 Ⅰ. Vocabulary（词汇，30分） (一)．Translate the following words and expressions into Chinese.（写出下列词组的汉语，共10分，每题1分） 1. central processing unit（CPU）中央处理器 1. 2. operating system 操作系统 2. 3. electronic spreadsheet 电子表格 4. management information system 管理信息系统 5. electronic commerce 电子商务 6. database 数据库 7. software engineering 软件工程 8. software crisis 软件危机 9. network security 网络安全 10. computer virus 计算机病毒 (二)．Fill in the blanks with the corresponding English abbreviations.（根据汉语写出相应的英语缩写，共10分，每题1分) 1．随机存储器RAM 2．局域网LAN 3．计算机辅助设计CAD 4．数字视频光盘DVD 5．通用串行总线USB 6．面向对象编程OOP 7．集成开发环境IDE 8．结构化查询语言SQL 9．多文档界面MDI 10．企业之间的电子商务交易方式B2B (三)．Match the following words and expressions in the left column with those similar in meaning in the right column.（将左列的词汇与右列相应的汉语匹配，共10分，每空1分） 1. output b a. 视频 2. high-level language c b. 输出. 3. project window e c. 高级语言 4. black-box testing g d. 应用软件 5. multimedia h e. 工程窗口 6. WWW i f. 系统软件 7.field j g. 黑盒测试 8. application software d h. 多媒体
1.判断题 （）1. Operating system first appeared during the third computer generation. （）2. Unlike the other buses, the address bus always receives data from the CPU; the CPU never reads the address bus. （）3. The main operations of set algebra are complementation, union and intersection. （）4. If an empty stack is popped, we say the stack overflows, which is normally an error. （）5. The CPU can be shared in a sequential manner only. （）6. Freeware is free software with no restriction. （）7. When writing data to memory, the CPU first outputs the data onto the data bus, then outputs the address onto the address bus. （）8．The FORTRAN programming language was developed during the first computer generation. （）9．A stack is a dynamic set that obeys the FIFO property. （）10．Two popular strategies for resource allocation are static allocation and dynamic allocation. （）11．The CPU can be shared in a sequential manner only. （）12. A program written in the assembly language of one microprocessor can run on a computer that has a different microprocessor. （）13. Object-oriented programming(OOP) is a programming language model organized around “objects” rather than “actions” and data rather than logic. （）14. FORTRAN is a particularly good language for processing numerical data, but it does not lend itself very well to organizing large programs. （）15. C++ and Smalltalk are two of the more popular object-oriented programming language. 2.词汇 Vacuum tube 真空管general purpose 通用transistor 晶体管 ：大规模集成电路）Large Scale Integrated Circuit（LSI． VLSI(Very Large Scale Integrated Circuit）：超大规模集成电路 Mainframe 大型机medium-sized computer 中型机minicomputer 小型机 Microcomputer 小型机 machine language 机器语言assembly language 汇编语言high-level language 高级语言Multiprogramming 多道程序设计virtual memory 虚拟存储time-share 分时 Batch system 批处理系统interactive system 交互式系统 Instruction cycle 指令周期 Address bus, data bus, control bus Internal register内部寄存器external register 外部寄存器flag register标志寄存器 Instruction register 指令寄存器program counter程序计数器combinatorial logic组合逻辑Control signal 控制信号instruction code指令代码instruction pipeline指令流水线Bidirectional 双向的unidirectional 单向的 ALU(Arithmetic Logic Unit) 算术逻辑单元
计算机专业英语考试试题及答案 一、判断1.(√)The cpu and memory are located on a special circuit beard in the system unit called the montherbocrd2.(√)the main difference between a supercomputer and a mainframe is that supercomputers are designed to execute a few programs as quickly as possible，whereas mainframes are designedto handle many programs running at the same(but at a slower pace)3.(×)Being computer fluent means that you should be able to build a computer yourself.4.(√)Embedded computers are selfcontained computer devices that have therv own programming and do not receive input5.(√)Currently，the performance of tasks by robot is based on preprinted algorithms1.(×)A web browser is a special device that is installed in your computer that allows it to communicate with devices on a network2.(√)data can be a number a word a picture，or a sound3.(√)strictly defined，a computer is a data processing device4.(√)one of the benefits of becoming computer fluent is being a savvy computer user and consumer and knowing how to avoid viruses the programs that pose treats to computer security 。 5(√)trend-spotting programs，developed for business，have been used to predict criminal activity二.写出中文 1.virtual function虚拟函数2.pointer 指针3.cursor 光标4.package 包裹 5. Boot 引导，自举6 TCP/IP 传输攻之协议/互联网协议7 DNS 域名服务8.HTTP 超文本传
计算机专业英语练习参考答案 Unit 1 [Ex 1] 1..F 2.T 3.T 4.F 5.T 6.T 7.T 8.T 9.T 10.F [Ex 2] 1.input, storage, processing, and output 2. power, speed, memory 3. central processing unit 4. internal, primary, memory 5. keyboard, central processing unit, main memory, monitor [Ex 3] A. 1.F 2.D 3.G 4.C 5.B 6.E 7.H 8.A B. https://www.doczj.com/doc/ab14104847.html,er 2.monitor 3.data 4.keyboard 5.data processing 6. information https://www.doczj.com/doc/ab14104847.html,puter 8.memory [Ex 4] 1.input device 2. screen, screen 3.manipulates 4.instructions 5.retrieve
6.code 7.hard copy 8.function/code/instruction [Ex 5] 1.T 2.T 3.F 4.F 5.T 6.F 7.T 8.F Unit 2 [Ex 1] 1.T 2.F 3.T 4.F 5.T 6.T 7.T 8.F [Ex 2] 1. sizes, shapes, processing capabilities 2. supercomputer, mainframe computer, minicomputers, microcomputers 3. mainframe computer 4.microcomputers, storage locations 5. portables, laptop computers/ notebook/palm-sized computer, desktop workstations 6.semiconductor 7. CPU, memory, storage, devices, processing, users 8. microprocessor ship [Ex 3] A. 1.C 2.A 3.H 4.I 5.E 6.F 7.G 8.B
计算机专业英语复习题标准化管理处编码[BBX968T-XBB8968-NNJ668-MM9N]
1.home page 主页 2.graphical user interface (GUI) 图形用户界面 3.artificial intelligence 人工智能 4.carbon copy 打字副本 5.field 字段 6.software suite 软件套装 7.desktop operating system 桌面操作系统 https://www.doczj.com/doc/ab14104847.html,ser printer 激光打印机 9.machine language 机器语言 10.relational database 关系数据库 11.menu bar 菜单栏 12.secondary storage 辅助存储器；二级存储器 13.system software 系统软件 二、 1.内存 memory 2.输入设备 input device 3.扬声器 speaker
4.局域网 local-area network 5.传输控制协议 transmission control protocol 6.集成电路 integrated circuits 7.上下文敏感 context sensitive 8.微处理器 microprocessor 9.只读存储器 Read-only memory 10.触摸屏 touch screen 11.像素 pixel 12.多媒体 multimedia 13.自动换行 word wrap 三
_________.
A、people B、OS C、keyboards D、procedures E、software ( abc ) 2、For microcomputer, there are three basic system units: ____________ . A、Desktop system units B、Notebook system units C、Personal digital assistant system units D、Arithmetic-logic units ( a ) 3、Language translators convert programming statements into__________. A、machine languages B、UNIX C、service programs D、operating systems ( b ) 4、The ____________is a list of commands or options from which you can choose. A、icon B、menu C、window D、pointer ( a ) 5、Database management systems are comprised of tables that are made of rows called __________ and columns called __________ . A、fields, records B、ranges, sheets C、records, fields D、 records, ranges ( abcd )6、The four main computer operations are _________.
一、Give out the full names for the following abbreviations(写出下列缩写词的全称)（15%） WAN__________________________________________________ HTTP__________________________________________________ NT____________________________________________________ CEO__________________________________________________ DBMS________________________________________________ ISP___________________________________________________ XML__________________________________________________ BIOS_________________________________________________ IT____________________________________________________ WWW_______________________________________________ 二、Match the following words and expressions in the left column with those similar in meaning in the right )（10%） 1. output devices a. 操作系统 2. silicon b. 扩展存储器 3. expanded memory c. 硅 4. database administrator d. 输出设备 5. operating system e. 汇编语言 6. assembly language f. 数据库管理员 7. gateway g. 数字图像处理 8. laser technology h. 网关 9. digital image processing i. 制造过程 10.manufacturing process j. 激光技术 1. （ ） 6. （ ） 2. （ ） 7. （ ） 3. （ ） 8. （ ）
计算机专业英语教程(第四版)习题答案
计算机专业英语（第四版）课后习题答案 Unit 1 [Ex 1] Fb5E2RGbCAP [Ex 2] 1. input, storage, processing, and output 2. power; speed; 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10.
memoryp1EanqFDPw 3. central processing unit memoryDXDiTa9E3d 5. keyboard; [Ex 3] B. A. central processing unit; 1. F 2. D 2. monitor 3. G 4. C 5. B main memory; 6. A 7. E monitorRTCrpUDGiT 8. H5PCzVD7HxA 4. internal; primary;
1. user
3. data
4. keyboard
5. data processingjLBHrnAILg
6. information [Ex 4] instructions
7. computer
8. memory 3. manipulates 4.
1. input device 2. screen, screen 5. retrievexHAQX74J0X 8. Function
6. code 7. hard copy
[Ex. 5] 新处理器开始 IT 技术的新时代 New Processors Open New Era of IT Technologies Last week, Intel introduced to the public in Russia and other CIS countries a family of processors Intel Xeon E5-2600. They are more powerful and reliable and, importantly, are very economical in terms of energy consumption. Their
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1 6. 计算机专业英语试题 2 I . Vocabulary （词汇）（30 分） （一） .Tran slate the follow ing words and expressio ns into Chi nese （写出下列词组的 汉语。）（共 10 分，每题 1 分） 1. operati ng system _______________________________ 2. white box testi ng _______________________________ 3. hard disk ________________________________ 4. man ageme nt in formatio n system ______________________________ 5. electr onic commerce _______________________________ 6. relati onal database ________________________________ 7. software engin eeri ng ______________________________ 8. .software maintenance _________________________________ 9. menu bar 10. network security （二） .Fill in the blanks with the corresponding English abbreviations. （根据汉语写出相应的 英语缩写。） （共 10分，每 题1分） 2. _ 广域网 4 .文件传送［输］协 6 .面向对象编程 8 .结构化查询语言 10 .开放系统互 （三） Match the following words and expressions in the left column with those similar in meaning in the right 1. applicati on software a. 音频 2. mach ine Ian guage b. 应用软件 3. structured program ming c. 机器语言 4. functional test ing d. 软件测试 5. memory e. 结构化程序设计 6. relati onal database f. 内存 7. firewall g. 功能测试 8. software test ing h. 关系数据库 9. hacker i. 黑客 10. audio j. 防火墙 column.（将左列的词汇与右列相应的汉语匹配。 1.只读存储器 ________________________ 3.传输控制协议 ______________________ 5.通用串行总线 ______________________ 7.集成开发环境 _____________________ 9.数据库管理系统 ____________________ ）（10分，每空1分）
习题+答案 2.1 Write T or F to each stateme nt T6. An asynchronous device is a clocked device. T7. A latch is an asynchronous device, because it functions at arbitrary times. T8. The repetiti on of clock pulse can vary from very low rate to very high rate. T9. A synchronous device changes its state only on the arrival of a clock pulse. F10. A clock in put may occur at any time. T11. The clock pulses are used to synchronize all operations of the shift register. T13. A uni direct ional shift register is capable of shift ing in one direct ion only. F14. I n a shift-left register the serial in put determ ines what goes into the leftmost position during the shift register. F15. To provide parallel tran sfer capability some additi onal in put and output lines should be provided to the shift register. Choose the best an swer for each of the follow ing 1. How can the output of a logic gate be en ergized? C A By cha nging its in puts. B By rema ining its in puts un cha nged. C By meet ing the specific in put con diti on. D By givi ng a pulse. 3. A NAND gate con sists of D . A an OR gate followed by an in verter B an AND gate followed by an in verter C an AN D gate followed by an OR gate D an in verter followed by an AND gate 4. Un der what con diti on is the output of a two-i nput XOR gate logic-high? B A Its in puts are simulta neously at the same logic level. B Its in puts are simulta neously at opposite logic levels. C Its in puts are logic-low. D its in puts are simulta neously logic-high. 2.2 Write T or F for each stateme nt T 1. The CPU uses the in put and output un its to com muni cate with the outside world. F2. Main memory is sometimes called exter nal memory. F3. After execution the program and the related files of data and files of information will be retained in the main memory for later use. F4. Personal computers have not the features of the larger system.. T5. Large systems offer higher process ing speeds for user and retur n more data tha n PCs.
计算机专业英语 模拟试题二参考答案 一、词汇（选择一个最合适的词汇，将对应的英文字母填入空格内。每题2分，共20分） 1、A B is used to communicate with another computer over telephone lines. A. keyboard B. modem C. mouse D. printer 2、A C is a device that enables the computer to handle sounds. A. network card B. video card C. sound card D. monitor 3、 A is a word processing tool that helps you to create quality documents. A. Word 2000 B. Outlook 2000 C. Access 2000 D. Excel 2000 4、 D is a fast and powerful operating system, based on the UNIX O.S. A. Windows 2000 B. Office 2000 C. Windows 98 D. Linux 5、The OSI model has D layers. A. four B. five C. six D. seven 6、The purpose of the A is to provide fully integrated analog services to users. A. ISDN B. WWW C. FTP D. HTTP 7、Which one is not a computer languages? B A. word 2000 B. PASCAL C. C D. C++ 8、The C turns the object file into an executable program. A. linker B. compiler C. interpreter D. computer 9、The RGB value is composed of A components. A. one B. two C. three D. four 10、 A virus is a A . A. program B. computer C. bad man D. beast 二、语法──单项选择题（每小题1.5分，共15分） 1、With Windows, you can run several powerful applications at once and switch quickly B them. A. between B. among C. in D. on 2、He doesn’t mind A her birthday party.