计算机专业英语教程(第四版)习题答案

1、电脑专业英语第四版课后习题答案Unit 1Ex 1 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10. FEx 2 1. input, storage, processing, and output 2. power; speed; memory3. central processing unit 4. internal; primary; memory5. keyboard; central processing unit; main memory; monitorEx 3 A. 1. F 2. D 3. G 4. C 5. B 6. A 7.

2、E 8. HB. 1. user 2. monitor 3. data 4. keyboard 5. data processing6. information 7. computer 8. memoryEx 4 1. input device 2. screen, screen 3. manipulates 4. instructions 5. retrieve6. code 7. hard copy 8. FunctionEx. 5 新处理器开始 IT 技术的新时代New Processors Open New Era of IT TechnologiesLast week, Intel

3、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 tech

4、nology 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 o

5、f IT-technology is developing so rapidly that, according to forecasts, by 2022 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效劳

6、器、 数字处理中心和超级电脑设计的。 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 技术市场的开展速度极快，根据预测，到2022年与英特网连接的设施将有 150亿，用户超过30亿。Ex 61. T2. T3. F4. F5. T6. F 7. T8. FUnit 2Ex 11. T2. F3. T4. F5. T6. T 7. T8. FEx 2 1. sizes, shapes, processing capabilities2. supercomputers, mainframe computers, min

7、icomputers, microcomputers3. mainframe computer 4. microcomputers, storage locations5. protables, laptop computers/notebook/palm-sized computer.desktop workstations6. semiconductor 7. CPU, memory, storage, devices, processing, users8. microprocessor chipEx 3A. 1. C 2. A 3. H 4. I 5. E 6. F 7. G 8. B

8、B. 1. capacity 2. device 3. laptop computer 4. Portable computers5. Silicon 6. semiconductor 7. workstation 8. voltage9. RAM 10. ROMEx 41. portable 2. access 3. main memory 4. sophisiticated programs5. processing capability 6. instructions 7. computation8. computer professionalEx 5平板电脑Tablet Compute

9、rA tablet computer, or simply tablet, is a one-piece, mobile version of a personal computer, primarily operated by touchscreen (the user's finger essentially functions as the mouse and cursor, removing the need for the physical i.e., mouse & keyboard hardware components necessary for adeskto

10、p or laptop computer; and, an onscreen, hideable virtual keyboard is integrated into the display). Available in a variety of sizes, even the smallest's touchscreens are much larger than those of a smart phone or personal digital assistant. A tablet computer may be connected to a keyboard with a

11、wireless link or a USB port. Convertible notebook computers have an integrated keyboard that can be hidden by a swivel joint or slide joint, exposing only the screen for touch operation. Hybrids have a detachable keyboard so that the touch screen can be used as a stand-alone tablet. Booklets include

12、 dual-touchscreens, and can be used as a notebook by displaying a virtual keyboard in one of them.Notes:cursor ?k?:s? n. 光标 detachable di?t?t?bl adj. 可拆开的 hybrids= hybrid computer 混合电脑swivel ?swiv?l n. 旋轴；旋转接头 stand-alone adj. 独立运行的 booklet ?buklit n. 笔记本式平板电脑平板电脑，也叫平板，是个人电脑的一款，可移动，是一个整体。平板电脑主要依靠触 屏

13、操作用户的手指发挥了鼠标和光标的作用，替代了台式和膝上电脑必须的物理硬件即鼠标和键盘 。还有一个与显示器整合的可隐藏的屏幕虚拟键盘。平板电脑型号多种，即使是最小的触屏也比智能 或个人数字助理的屏幕大多了。 可以用无线连接或 USB 插口给平 板电脑连接一个键盘。 可旋转笔记本电脑可以通过一个旋转铰链或一个滑动铰链把集成的键 盘隐藏起来， 仅仅在需要触摸时显示。 混合型电脑配有一个可拆分的键盘， 这样触屏可以当 作一个单独的平板电脑使用。 笔记本平板电脑包括两个触屏， 在其中一个触屏上显示虚拟键 盘就可以作为笔记本使用。Ex 61. T13. T2. T14.3. T T4. F 5. F 6.

14、 T 7. F8. T9. F10.T11. F12. TUnit 3Ex 11. T2. F3. T4. T 5. T 6. T 7. F8. F9. T10.F11. T12. F13. F14.T 15.FEx 21. microprocessor2. bus 3. register 4.control cessor6. binary7. arithmetic, logical8. milliseconds, microseconds, nanoseconds.9. instruction 10. execution 11. megahertz 12. wordsize

15、Ex 3 A. 1. F 2. A 3. J 4. C 5. D 6. E 7. H 8. I 9. B 10. G B. 1. Storage 2. chip 3. registers 4. ALU 5. bus 6. control unit7. machine language 8. binary system 9. bits 10. computer programEx 4 1. configuration 2. converts 3. data buses 4. characters5. decodes 6. synchronize 7. circuitry 8. internal

16、clockEx. 5Bus Systems Supporting Multiple PeripheralsAs the number of potential peripherals grew, using an expansion card for every peripheral became increasingly impossible. This has led to the introduction of bus systems designed specifically to support multiple peripherals. Common examples are th

17、e SATA ports in modern computers, which allow a number of hard drives to be connected without the need for a card. However, these high-performance systems are generally too expensive to implement in low-end devices, like a mouse. This has led to the parallel development of a number of low-performanc

18、e bus systems for these solutions, the most common example being Universal Serial Bus. All such examples may be referred to as peripheral buses, although this terminology is not universal.Notes:1. Serial ATA (SATA) is a computer bus interface for connecting host bus adapters to mass storage devices

19、such as hard disk drives and optical drives.2. Universal Serial Bus USB支持多种外接设备的总线系统随着外接设备数量的不断增加， 想用扩展卡来应付每一种外围设备越来越不现实了， 这 就产生了设计专门支持多种外接设备的总线系统。通常的例子就是现代电脑上的 SATA 接 口，这就允许很多硬盘驱动器不需要卡就可以同电脑连接起来。 但是把这些高性能系统用于 低端设备， 如鼠标等就很不合算。 这就导致同时开发很多低性能的总线系统解决方案， 最常 见的例子就是UBS接口。所有这些例子都可以称作外接设备总线，尽管这个术语还没有普遍通用。Ex

20、 61. T2. F3. F4. T 5. T6. F7. T8. T9. T10 FUnit 4Ex 11. F2. T3. T4. T 5. F6. T7. F8. T9. T10. T 11. F 12. T13. F14.T 15.T 16. F17. F18. T19.F 20.T 21. F22. T23. F24.T 25.FEx 2 1. main memory 2. RAM 3. diskettes/floppy disks; hard disks4. chips 5. parity 6. expanded, extended 7. monochrome8. cache 9.

21、 ROM 10. updatedEx 3 A. 1. B 2. E 3. C 4. J 5. I 6. H 7. A 8. F 9. G 10 DB. 1. secondary storage 2. buffer 3. access 4. code 5. diskette6. slots 7. terminals 8. motherboard 9. bytes 10. screen Ex 4 1. desktop 2. software 3. animation 4. transferred 5. sophisticated6. compatible 7. cache 8. upgradeUS

22、B flash driveA USB flash drive is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. USB flash drives are typically removable and rewritable, and physically much smaller than a floppy disk. Most weigh less than 30 g. As of September 2022, drives

23、 of up to 256 gigabytes (GB) are available. Storage capacities as large as 2 terabytes are planned, with steady improvements in size and price per capacity expected. Some allow up to 100,000 write/erase cycles, depending on the exact type of memory chip used, and a 10 year shelf storage time.USB fla

24、sh drives are often used for the same purposes for which floppy disks or CD-ROMs were used, i.e., for storage, back-up and transfer of computer files. They are smaller, faster, have thousands of times more capacity, and are more durable and reliable because they have no moving parts. Until about 200

25、5, most desktop and laptop computers were supplied with floppy disk drives, but floppy disk drives have been abandoned in favor of USB ports.NotesGB: gigabyte 吉字节 109 字节； terabyte TB 太字节， 1012 字节USB 闪驱USB闪驱是一种数据存储设备，它包含带有一个集成的通用串行总线USB接口 。USB闪驱通常可以移动并可以重写，其尺寸要比软盘小得多， 大多数的重量不到30克。从2022年9月始，市场就出现256 G

26、B的U盘。2太字节的U盘在筹划之中，估计U盘大小会更加合理， 价格也更适宜。有的U盘允许写/擦 10万个循环，这取决于存储芯片的型号，储存寿命可以到达10年时间。USB闪驱与软盘或CD-ROM的目的相同，就是为了电脑文件的存储、 备份和转移。因为 它们没有移动部件，所以体积更小，速度更快，拥有数千倍的容量，更加持久可靠。到2005年，大局部台式和膝上电脑还都配备软驱，但是软驱因为USB插口而被淘汰。Ex. 6 1. T2. F3. F4. T 5. T 6. T7. T8. F 9. F 10. F 11. T 12. T 13. T14. F15. T16.F 17. T 18. T19.

27、F20. T 21. T 22. TUnit 5Ex 1 1. T 2. T 3. F 4. T 5. F 6. F 7. F 8. T 9. T 10. T 11. F 12. T 13. F14. F 15. T 16. T 17. F 18. T 19. F 20. F 21. T 22. T 23. TEx 21. mail, courier 2. hub, star 3. Local Area Network 4. packets 5. Ethernet6. kilobits per second, megabits per second, gigabits per second 7

28、. circuit switching 8. reassembled 9. Internet Protocol, Transmission Control Protocol 10. datagram 11. frames 12. binary, decimalEx 3 A. 1. C 2. E 3. B 4. F 5. A 6. D 7. H 8. GB. 1. hub 2. zipped 3. decimal 4. frame5. binary number 6. Internet 7. packet 8. bandwidthEx 41. forwarded 2. reassembled 3

29、. are encapsulated 4. cables 5. bursty6. submit 7. are retransmitted 8. protocol1. E 2. A 3. C 4. F 5. B 6. D 7. H 8. GEx 61. 有意为技术效劳人员留下的2. 抛弃、丧失或消灭的数据都进入到数据接受器中3. 远远不能覆盖绝大多数嫌疑人4. 真正奇才所掌握的技术5. 文件和程序6. 1.系统详情、扩展其性能5.敏感信息的人7. 滞缓的特性和控制开发的复杂性8. 非常巧妙的权宜之计，旨在解决很棘手的问题9. 不能有效与他人沟通的人10. 一个程序、数据结构或全部程序的11. 交

30、叉指向不适宜的新闻组12. 打免费长途了；通信网络，但不单指通信网络13. 眼睛疲劳14. 无关紧要或令人讨厌的琐碎问题15. 不会有人发现这些漏洞的，或发现了也不会利用16. 受人雇佣，为测试系统的平安性而攻入某个地方17. 那种使用许多GOTO、例外或另外的“非结构的分支构造18. 不能定期运行适当的抑制程序19. 某种非常友好程序的20. 远在没有正式发行之前21. 该技术也许不能发挥作用。如果不能用，程序员也永远不知道为什么22. Suns机上使用L1-A ;某些 Mac机使用！23. 完全丧失功能了；电脑想做某事但不能进行下去了24. 人的神经系统，与电脑的硬件或软件相对；系统的硬件

31、或软件25. 那种在紧急状况下能迅速发现并解决问题26. 思想排外/思想保守Unit 6Ex 11. F 2. T 3. F 4. T 5. T 6. F 7. F 8. T 9. T 10. F 11. F 12. F13. T 14. FEx 21. compatible 2. hardcopy 3. term in al, mon itor4. in ked ribb on5. li ne6. Thermal 7. Mono chrome8. liquid crystal displayEx 3 A. 1. G 2. B 3. I 4. F 5. D 6. H 7. C 8. E 9.

32、J 10. AB.1. prin ters2. hard copy 3. CRT 4. hardware 5. pixel6. output 7. software 8. Line prin ters9. plotters 10. graphicsEx 41. are attached 2. compatible 3. flexible 4. mechanism5. perform6. rotate 7. tran sfer8. videoEx 5Electrolumi nesce nt Display电致发光显示器A type of flat-panel display平板显示that us

33、es the property of electroluminescenee, whereby a phosphor will emit phot ons of radiati on光子辐射whe n placed in an electric field电场.The phosphor is in corporated in a thin coati ng on the scree n; an additi onal coat ing can produce full color. Electrolumi nesce nt scree ns are used in some large-scr

34、ee n displays, such as airport announ ceme nt boards. Nowadays electrol umin esce nt scree ns are mai nly used for small displays in con trol pan els and domestic equipme nt.电致发光显示器这是一种平板显示器。把荧光粉放置在电场之中就能发射光子辐射，这就是平板显示器使用的电致发光性能。屏幕上有薄薄的荧光粉涂层，这个添加涂层能产生全彩。电致发光屏幕用于某些巨大的显示屏上，例如机场通告板。如今电致显示屏主要用于控制板和家庭设施

35、的小型显示器上。Ex. 6 1. T 2. F 3. T 4. F 5. T 6. F 7. F 8. T 9. F 10. T 11. F 12. T 13. F14. T 15. F 16. T 17. T 18. T 19. T 20. F 21. T 22. F 23. T 24. T 25. TUnit 7Ex 11. T 2. F 3. T 4. T 5. F 6. F7. T8. T 9. F 10. F11. F 12. T13. F 14.T15. T 16. F 17. T18. T19. F 20. FEx 21. prin ters, plotters 2. graph

36、ics 3.pins4. pages per minute5. dots per inch6. li nes per minute 7. non-impact8. carb onEx 3 A.1. D 2. F 3. B 4. A 5. G 6. E 7. C 8. HB.1. print wheel 2. Microcomputers 3. ink jet prin ter4. n etwork5. no ise 6. output device 7. desktop publish ing8. dot-matrix prin tersEx 41. i nstallati ons2. cat

37、egorized 3. image 4. ribb on 5. mon ochrome6. physical 7. referred to 8. dotEx 5Digital Tech no logy of Copy Mach ineThere is an in creas ing trend for new photocopiers to adopt digital tech no logy, thus replac ing the older an alog tech no logy. With digital copy ing, the copier effectively con si

38、sts of an in tegrated scanner and laser printer. This design has several advantages, such as automatic image quality enhancement and the ability to "build jobs" (that is, to scan page images independently of the process of printing them). Some digital copiers can function as high-speed sca

39、 nn ers; such models typically offer the ability to send documents via email or to make them available on file servers.A great adva ntage of digital copier tech no logy is "automatic digital collati on." For example, whe n copy ing a set of 20 pages 20 times, a digital copier sca ns each p

40、age only once, the n uses the stored information to produce 20 sets. In an analog copier, either each page is scanned 20 times (a total of 400 sca ns), making one set at a time, or 20 separate output trays are used for the 20 sets.Notes:scanner扫描仪collation k?ei?)n n.校勘，核对tray托盘，文件盘复印机的数字技术新的复印机越来越趋向

41、于采用数字技术替代老的模拟技术。数字复印机有效地把扫描仪和激光打印机整合在一起，这种设计拥有数个优势，譬如自动图形质量提高，自开工作的能 力扫描和打印互不干预。有些数字复印机如同一个高速扫描仪，这样的型号通常具有通 过email发送文件的能力，或者给文件效劳器提供文件。数字复印机的最大优点在于它可以“自动数字校验。例如当要复印20页，每页复印20份的时候，数字复印机只需每一页扫描一次，然后使用储存的信息复印20份。如果是模拟复印机，要么每一页都要扫描 20次一共要扫描400次，一次复印一份；要么每页复印20份，20页分别放在20个输出托盘中。Ex.61. F2. T 3. T4. T 5. F

42、6. T7. F8. T9. T 10. F 11. T 12. T13. F14. F15. T 16.F 17. T18. F19. T20. T21. T 22. F 23. T 24.TUnit 8Ex 11. T2. F 3. T4. T 5. F6. T7. F8. F9. F 10. T 11. F 12. T13. T14. F15. T 16.T 17. F18. T19. T20 F21. F 22. T 23. T 24.FEx 21. Local area n etworks, wide area n etworks 2. clie nt-server 3. bus 4

43、. protocol5. hardware 6. microwaves 7. adapter, router 8. stack 9. upper, lower 10. layeredEx 3 A. 1. D 2. E 3. F 4. H 5. A 6. G 7. B 8. CB. 1. C. server 2. E.adapter 3. D. topology 4. G. microwave5. A. local 6. H. i nception 7. B. wide 8. F. WirelessEx 41. layout 2. accommodate 3. con forms 4. addr

44、ess 5. in teroperable6. session 7. has been designated/was designated 等8. configuringEx 51. H 2. A 3. F(tra nsmits)4. C 5. D 6. E 7. B 8. GEx 6 1. T2. T3. F4.T5. F 6. F7.T8. T9. T10. T11. T12. F13. T14. T15.T16.F17.F 18. T19.F20. T21.T 22.T 23. T 24.F 25.T 26.T27. T28. F29. F 30. F31. T 32. T33. F34

45、. T35. T36. F37. T38.F39.F40.F 41. T42.T43. T44.FUnit 9Ex 11. T 2. T 3. F 4. T 5. F 6. F 7. T 8. T 9. T 10. F 11. T 12. F13. T 14. F 15. T 16. T 17. T 18. FEx 21. cha nn els 2. eletrical pulses or charges, eletromag netic waves, pulse of light3. telepho ne lin es, coaxial cables, microwave systems,

46、satellites systems, fiber optic cables 4. telepho ne lines 5. n etworks 6. atmosphere 7. microwave tower8. gigahertz 9. digital 10. lightEx 3 A. 1. B 2. D 3. F 4. G 5. A 6. C 7. E 8. HB. 1. no ise 2. tran smissi on 3. Fiber optics 4. Microwave 5. sychr onous6. optical media 7. Coaxial cable 8. digit

47、sEx 41. com muni cate 2. revolves 3. detect 4. en crypted 5. noncon ductive6. freque ncy 7. susceptible 8. relayed9. antenna 10. PulsesEx 5SmartphoneTo really understand what a smartphone is (and is not), we should start with a history lesson. In the beginning, there were cell phones and personal di

48、gital assistants (or PDAs). Cell phones were used for making calls-and not much else-while PDAs, like the Palm Pilot, were used as personal, portable organizers. A PDA could store your contact info and a to-do list, and could sync with your computer.Eventually, PDAs gained wireless connectivity and

49、were able to send and receive e-mail. Cell phones, meanwhile, gained messaging capabilities, too. PDAs then added cellular phone features, while cell phones added more PDA-like (and even computer-like) features. The result was the smartphone.智能要真正理解什么是智能 ，什么不是智能 ，我们应该从了解历史开始。 起初人们使 用 和个人数字助理。 只是用来打

50、，而数字助理，如掌上电脑，是个人便携式的记 事本。 一台个人数字助理能储存你的联系信息以及将要处理的事情，可以和电脑同步。最终，个人数字助理开始了无线连接，能够发送和接收电子邮件，而 也具备了获取 信息的能力。个人数字助理添加 功能， 也增添个人数字助理甚至电脑的特性，其 结果就是智能 。Ex. 61. F2. F3. T4. F 5. F6. F7. T8. F9. T10. T11. T12. TUnit 10Ex 11. F2. T3. T4. F 5. T6. T7. T8. F9. F10. T11. F12. T13. F14. F15.T 16. F17. T18. F19. T

51、20. TEx 2 1. download, contract/infect 2. macros 3. viruses 4. timer 5. client6. recognize 7. reformat 8. back up Ex 3 A. 1. B 2. E 3. F 4. A 5. C 6. G 7. D 8. HB. 1. informative 2. programmed/is programming 等 3. responsive4. attachment 5. chat group 6. The bottom line 7. inoperabl 8. is scannedEx 4

52、 1. has rendered 2. embedded 3. update 4. are contracted 5. wired6. theorized 7. replicate 8. activated Ex 5 1. C 2. G 3. A 4. F 5. H 6. B 7. E 8. DEx 6 1. F 2. T 3. F 4. T 5. T 6. T 7. F 8. F 9. T 10. F 11. F 12. T 13. F14. F 15. F 16. F 17. T 18. T 19. F 20. F 21. T 22. T 23. T 24. T 25. F 26. FUn

53、it 11 Ex.1Ex 3 A. 1. C 2. D 3. H 4. F 5. EB. 1. bookmark2. browsers6. B 7. A 8. G3. primer4. HTML7. webmaster8. Search Engines5. link6. serversEx. 41.用超文本标识语言创立文档2.为网络创立文件3.文档类型定义4.独立平台风格5.网络效劳器6.局域视图模式7.超文本标识语言版本8.超文本标识语言文档9.纯文本文件10.文本编辑器11.文字处理软件12.带分行符的文本13.超文本编辑器14.超文本标识符的根本知识15.文字处理器16.使自己的文件登录

54、上网17.局域网18.提供免费上因特网19.本地因特网供应商20.免费将文件登录效劳器21.用超文本标识符标志文件要素22.左尖括号23.标识符名24.右尖括号25. 标识符指令26.图片源文件超文本标识符27.计较大小写 / 键盘上下档28. 纯骨架文档29.一个样式文件30. 查看源文件31.带有超文本语言标识符的源文件32.超文本语言编码信息33. 文件扩展名34.全球背景35.大号字或 /和粗体字36. 回车37.单词移行38.回行12. template14. source10. required13. carriage returns, spaces, linefeedsEx 23

55、. ASCII files1. HTML, the hypertext markup language4. markup tags8. slash2. components5. webmaster 6. Heads, tables, paragraphs, lists 7. tags11. View Source9. case sensitiveEx 5What does HTML stand for?HTML is an abbreviation of "HyperText Mark-up Language" - which is already more than you need to know at this stage. However, for the sake of good order, let us explain in greater detail.? Hyper is the