Test 1
(1)Translate these words into Chinese. (60’)
1. RAM/ROM/cache memory随机存取存储器/只读存储器/高速缓(冲)存(储器)
2. LAN/WAN/URL局域网/广域网/统一资源定位器
3. Web page/web site/explorer网页/网站/浏览器
4. setup/output/type安装,设置/输出/键入,类型
5. device/component/battery设备/组件/电池
6. execute/implement/complete执行/执行/完成
7. uppercase/lowercase/width insensitive大写/小写/不区分全半角
8. Fax number/Telephone Area Code/Postal Code传真号/电话区号/邮政编码
9. decode/encode/define解码/编码/定义
10. profile/batch/virtual配置文件/批处理/虚拟的
11. display screen/touch screen/browse显示屏/触屏/浏览
12. hyperlink/multimedia/digital超链接/多媒体/数码的
13. printer/scanner/portable computer打印机/扫描仪/便携式电脑
14. communication/instruction/short message通信/指令/短信
15. field/format/index字段/格式化/索引
16. ensure/insurance/unsure确保/保险/不确定
17. compress/decompress/compact压缩/解压缩/压缩
18. share/subfolder/root directory共享/子文件夹/根目录
19. initial value/account/domain name初始值/帐户/域名
20. cancel/deny/adjust取消/拒绝/调整
21. enable/disable/restart启用/禁用/重启
22. load/upload/download加载/上传/下载
23. paste/cut/save粘贴/剪切/保存
24. disconnect/rollback/enter断开/回退/输入,进入
25. permit/grant/license允许/授权/许可(证)
26. programmer/specialist/client程序员/专家/客户
27. detail/consult/online guide细节/参阅/联机指南
28. send/receive/transmit发送/接收/发射
29. ignore/import/export忽略/导入/导出
30. optic fiber/cable/semiconductor光纤/电缆/半导体
31. quit/exit/exist停止/退出/存在
32. select/choose/double click选择/选择/双击
33. track/router/path追踪,磁道/路由器/路径
34. dynamic/static/log动态/静态/日志
35. mismatch/proxy/retrieve不匹配/代理/检索
36. database/document/report数据库/文档/报告
37. insert/create/specify插入/创建/指定
38. accessories/privilege/common附件/特权/公用,常见
39. company/corporation/enterprise公司/公司/企业,事业单位
40. console/control/encounter控制台/控制/遇到
(2)Translate these sentences into Chinese. (30’)
1. Bad command or file name.错误命令或文件名.
2. Unable to register document.无法注册文档.
3. Enter the password for the account.输入帐户密码.
4. Attempting to recover allocation unit.设法修复分配单元.
5. - contained an unexpected object. -包含意外对象.
6. Disk full or write protected.磁盘已满或写保护.
7. Label a blank high density floppy disk with the name of the user of this computer.在一张高密度空白软盘上标明该计算机用户的名称.
8. I accept the agreement.我接受协议.
9. Close all programs that are running.关闭正在运行的程序.
10. Check with the manufacturer before continuing.继续操作以前,请与厂商核对.
11. A modem has not been detected on your server. Please verify its installation in Modem Control Panel before continuing.在服务器上未检测到调制解调器.继续以前,请在「控制面板」的「调制解调器」中验证其安装.
12. A second network adapter has not been detected on your server. Please verify its installation using a static IP address in Network Control Panel before continuing. 在服务器上未检测到第二个网络适配器.继续以前,请用「网络控制面板」中的静态IP地址验证其安装.
13. Please free up some disk space or modify your installation directories.请清空某些磁盘空间和/或修改安装目录.
14. Click the mouse or press any key in the keyboard to exit this module.点击鼠标或按键盘上的任意键推出这个模块.
15. A locking violation occurred while accessing-.访问- 时出现锁定冲突.
16. - could not be removed because it is the current directory. -是当前目录,无法删除.
17. Can't load Remote Access Service. Please reconfigure Dial-Up Networking.无法加载远程访问服务(RAS),请重新配置拨号网络.
18. - does not support multiple network adapters for Windows -. Press Finish to exit this wizard and contact your system administrator.不支持Windows NT的多个网络适配器.请按「完成」退出该向导,并与系统管理员联系.
19. - is not a valid entry. Please specify a value between- and- for this field. -条目无效,请为该字段指定-和-之间的值.
20. Click Migrate SQL Database to convert date - from the Small Business Server limited version of SQL Server 6.5 to the limited version of SQL Server 7.0.单击「迁移SQL数据库」可将小型商业服务器SBS的SQL Server 6.5限定版数据转换到SQL Server 7.0限定版.
(3)Translate this article into Chinese. (10’)
Operating environment, installation and running
操作环境、安装与运行
1. Basic requirements on system:
Hardware environment: CPU PII300 or above, EMS memory of 64M or above, and hard disk of 1G or above;
Operating system: Windows 95 /98 /ME /2000 /XP /2003 Chinese version.
系统基本需求
运行硬件环境:CPU PII300以上,内存64M以上,硬盘1G以上.
运行操作系统:Windows95/98/ME/2000/XP/2003中文版.
2. Installation of software
Put the CD into a CD driver, the system will prompt automatically the installation messages, and then you can follow them step by step to finish the installation of the software.
软件安装
将安装光盘放入光盘驱动器中,系统会自动提示安装信息,根据安装提示一步一步安装即可完成该软件的安装.
3. Running of software
After finishing the installation, the shortcut to this run application will be created automatically on the desktop and in “Start” menu. Only click the shortcut, running of this software begins.
软件运行
软件安装后,会在桌面和开始菜单上自动生成指向该运行程序的快捷方式,点击该快捷方式即可运行该软件了.
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
计算机英语期末考试试题 I. 单选题. (1*20) 1.A computer system includes both _________ and software. A.cable B.memories C.CPU D.hardware 2.The heart of the computer is _________ A.CPU B.BUS C.CAI D.DIV 3.Which is not input device used with microcomputers ? A.Keyboard B.Printer C.touch screen D.Mouse 4.Basically , a computer consists of four components : Central Processing Unit , _________, Input Device and Output Device. A.Memory B.Keyboard C.Monitor D.The Control Unit 5.A _________ is a small , hand-held object that is pushed around a desktop to move the cursor or pointer on the screen or to select choices from menu displayed on screen. A.keyboard B.mouse C.monitor D.printer 6.Which is "删除" in Chinese ? A.shift B.Control C.Insert D.Delete 7.__________ refers to the parts of the computer that you can see and touch. A. Software B. Hardware C. Hardship D. Instruction 8._________ is used to communicate with another computer over telephone lines A. keyboard B .modem C. printer D. Mouse 9.__________is a device that enables the computer to handle sounds. A. network card B. video card C. sound card D. Monitor 10. The display screen is the most common device used to show you what the computer is doing. A. input B. printing C. output D. electronic 11._________ is a word processing tool that helps you to create quality documents. A. Word 2003 B. Outlook 2003 C. Access 2003 D. Excel 2003 12.The first generation of computer lasted from _________ to 1958. A.1965 B.1946 C.1947 D.1970 13._________ is the application of the computer and communications technology to improve the productivity of office workers. A.CAI B.AI C.OA D.CAM 14._________ is a software system based on graphics, which can run under MS-DOS. A.Office B.Mouse C.OS D.Microsoft Windows 15.Generally software can be divided into two types: software system and _________ system. A.hardware B.DOS C.application D.Windows 16.The _________ is the part of the computer where programs and data are stored. A.Input Device B.Memory C.CPU D.CU 17. refers to data storage equipment that allows the stored data to be accessed randomly rather than just in sequence. A.Random Access Memory B.Magnetic tapes C.Disks D.ROM 18.Word processing , of course, relies on perhaps the most basic computer _________ : the keyboard. A.output device B.input device C.storage D.CPU 19._________ refers to any machine capable of representing information from a
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
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. （ ）
计算机专业英语试题1 Ⅰ. Vocabulary(词汇，30分) (一)．Translate the following words and expressions into Chinese(写出下列词组的汉语。10分，每题1分) 1． hard disk 2．operating system 3．electronic spreadsheet 4．management information system 5．electronic commerce 6．data structure 7．software engineering 8．computer virus 9． machine language 10．management information system (二)．Fill in the blanks with the corresponding English abbreviations.(根据汉语写出相应的英语缩写。10分，每题1分) 1．电子数据交换 2．传输控制协议 3．计算机辅助设计 4．计算机辅助设计 5．通用串行总线 6．面向对象编程 7．集成开发环境 8．结构化查询语言 9．局域网 10．企业之间的电子商务交易方式 （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。10分，每空1分) 1. RAM(random access memory) a. 视频 2. high-level language b. 随机存储器. 3. project window c. 高级语言 4. functional testing d. 应用软件 5. multimedia e. 工程窗口 6. hacker f. 系统软件 7. memory g. 功能测试
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
计算机英语试题 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1分，共10分） 1、____ refers to the parts of the computer that you can see and touch. A. Software B. Hardware C. Hardship D. Instruction 2、primary memory which is stored on chips located ____. A. on the motherboard B. outside C. inside the processor D. on the CPU 3、The display screen is the most common ____ device used to show you what the computer is doing. A. input B. printing C. output D. electronic 4、Windows gives you more control over the ____ you work. A. operation B. way C. energy D. power 5、The most important program on any computer is ____. A. Operating System B. Virus C. software D. Office 2000 6、There are ____ separate products that form the Windows 2000。 A. only one B. two C. three D. four 7、C might best be ____ as a 'medium-level language'. A. developed B. decoded C. programmed D. described 8、Anti-Virus protects your computer from viruses by ____ your computer's memory and disk devices. A. deleting B. changing C. scanning D. replacing 9、Multimedia will become increasingly ____ throughout every aspect of our lives. A. pass B. precise C. permit D. pervasive 10、Communication through the Internet, the____ performs the reverse function. A. A station controller (STACO) B. DTE C. Data communications equipment (DCE) D. CRT 二、语法——单项选择题（每小题1.5分，共15分） 1、The girl I saw ____ brown hair and blue eyes. A. had she B. she had C. her
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/01155899.html,er 2.monitor 3.data 4.keyboard 5.data processing 6. information https://www.doczj.com/doc/01155899.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
1 工学结合创新教程 计算机专业英语 2014年上半学期计算机专业英语 期末考试试卷（A 卷）答案 一、选择题 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. 操作系统 2. 需求分析 3. 网络安全 4. 数据结构 5. 决策支持系统 6. 关系数据库 7. 软件危机 8. 计算机病毒 9. 邮件附件 10． 中央处理器（单元） (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．DBMS 2．TCP 3．MDI 4．OOP 5．ROM 6．VCD 7．CAD 8．SQL 9．USB 10．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。)(10分，每空1分) 1． c 6. h
35 项目5 项目9 项目8 项目6 项目7 项目10 2．3．4．5．Ⅱ1． (三)、choose the best answer according to the passage B.(根据上文的内容选择正确的答案。（10分，每题2分） 1．B 2．A 3．D 4．B 5．C (四) Choose the best answer according to Passage C.（ 根据上文的内容选择正确的答案。10分，每题2分） 1．C 2. D 3. A 4. C 5. B Ⅲ.Translation.翻译(30分) (一) Translate the following sentences into Chinese.（将下列句子翻译成汉语。）（共20分，每题5分） 1.开发一个软件产品，开发过程分为五个步骤：需求分析和说明，设计，写代码，测试和维护。 2.功能测试检验的是用有效的输入是否能够得到所期望的输出。+ 3. EDI 指的是两个公司之间通过私有网络使用特定、结构化的格式电子交换商业信息。 4．一些应用软件，例如Word ，允许几个窗口同时在一个叫做MDI 的模式下存在，你能够在一个软件中打开多个文档。 (二) Translate the following paragraph into Chinese.（将下段文章翻译成汉语。）（共10分） 高级语言是一种人造语言，使用它我们可以写不同的指令。这成为可能不是因为计算机处理器如今是如此的技术先进以至于它们可以理解这些语言。你需要将这些语言翻译成计算机处理器能够理解的机器语言。编译器能够完成这项工作。这就意味着高级语言程序不是直接可
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）
计算机专业英语 一、请将下列英文专业术语翻译成汉语。（每小题1分，共10分） 1.integrated circuits 2.operation code 3.instruction 4.simulation 5.EDI 6.baud 7.portability 8.video conferencing 9.access control 二、请将下列汉语专业术语翻译成英文。（每小题1分，共10分） 1.加密 2.密钥 3.综合业务数字网 4.频分多路复用 5.信元 6.用户界面 7.关系结构 8.解释程序 9.流程图 三、请将下列专业术语和相应的解释进行匹配。（每小题2分，共20分） 1. ________decrypting 2. ________certification 3. ________packet switching
4. ________navigation 5. ________TDM 6. ________viewer 7. ________multimedia 8. ________virtual circuit 9. ________DBMS 10. _______binding a. The authoritative act of documenting compliance with agreed requirements. b. The process of restoring encrypted information to readability. c. A technique used so that transmission can continue on an alternative path in the event of a node failure or congestion. d. A form of space-division switching in which each input line is a TDM stream. The switch configuration may change for each time slot. e. The division of a transmission facility into multiple channels by allotting the facility to different channels, one at a time. f. A method of transmitting messages through a communications network, in which long messages are subdivided into short packets. Each packet is passed from source to destination through intermediate nodes. At each node, the entire message is received, stored briefly, and then passed on to the next node. g. A facility in which the customer leases circuits and, sometimes, switching capacity for the customer ‘s exclusive use. Access may be provided to a public switched telecommunications service. h. A class that serves as the basis for inheritance. A base class is the superclass for all its derived classes. i. The match between a message received by an object and one of its methods. Can be done static, that is, at compile-time, or dynamic, that is, at run-time. j. a request to perform a method for an object. A message results in the invocation of the method. The message contains a selector that identifies the method and any parameters from the method. k. A collection of one or more files treated as a whole unit. l. Software that organizes, manipulates, and retrieves data stored in a database. m. A specialized version of a program that allows you to view documents created
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.