計算機專業(yè)英語教程習題答案

1、計算機專業(yè)英語（第四版）課后習題答案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; memory 3. central processing unit 4. internal; primary; memory 5. keyboard; central processing unit; main memory; monitorEx 3 A. 1. F 2. D 3. G 4. C 5. B 6.

2、A 7. E 8. H B. 1. user 2. monitor 3. data 4. keyboard 5. data processing 6. information 7. computer 8. memoryEx 4 1. input device 2. screen, screen 3. manipulates 4. instructions 5. retrieve 6. code 7. hard copy 8. FunctionEx. 5 新處理器開始IT技術的新時代New Processors Open New Era of IT TechnologiesLast week,

3、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 clou

4、d 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 ma

5、rket 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，英特爾公司向俄羅斯和其它獨聯(lián)體國家的公眾推出了英特爾Xeon E5-2600系列處理器，它們更加強大可靠，尤其是在能量消耗方面更加經(jīng)濟實惠。它們的問世意味著IT技術領域開始了一個新時代，標志著云技術距離我們越來越近。這些處理器主要是為

6、服務器、數(shù)字處理中心和超級計算機設計的。這種處理器的出現(xiàn)并非偶然。根據(jù)英特爾公司俄羅斯和其他獨聯(lián)體地區(qū)負責人Dmitri Konash就此事發(fā)表的看法，IT技術市場的發(fā)展速度極快，根據(jù)預測，到2015年與英特網(wǎng)連接的設施將有150億，用戶超過30億。Ex 6 1. T 2. T 3. F 4. F 5. T 6. F 7. T 8. FUnit 2Ex 1 1. T 2. F 3. T 4. F 5. T 6. T 7. T 8. FEx 2 1. sizes, shapes, processing capabilities 2. supercomputers, mainframe compu

7、ters, minicomputers, microcomputers 3. mainframe computer 4. microcomputers, storage locations 5. protables, laptop computers/notebook/palm-sized computer. desktop workstations 6. semiconductor 7. CPU, memory, storage, devices, processing, users 8. microprocessor chipEx 3 A. 1. C 2. A 3. H 4. I 5. E

8、 6. F 7. G 8. BB. 1. capacity 2. device 3. laptop computer 4. Portable computers5. Silicon 6. semiconductor 7. workstation 8. voltage9. RAM 10. ROMEx 4 1. portable 2. access 3. main memory 4. sophisiticated programs 5. processing capability 6. instructions 7. computation 8. computer professionalEx 5

9、 平板電腦Tablet ComputerA tablet computer, or simply tablet, is a one-piece, mobile version of a personal computer, primarily operated by touchscreen (the users finger essentially functions as the mouse and cursor, removing the need for the physical i.e., mouse & keyboard hardware components necessary f

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

11、ith a 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 i

12、nclude dual-touchscreens, and can be used as a notebook by displaying a virtual keyboard in one of them.Notes:cursor k:s n. 光標 swivel swivl n. 旋軸；旋轉(zhuǎn)接頭detachable dittbl adj. 可拆開的 stand-alone adj. 獨立運行的hybrids= hybrid computer混合計算機 booklet buklit n. 筆記本式平板電腦平板電腦，也叫平板，是個人計算機的一款，可移動，是一個整體。平板電腦主要依靠觸屏操作（用

13、戶的手指發(fā)揮了鼠標和光標的作用，替代了臺式和膝上電腦必須的物理硬件即鼠標和鍵盤。還有一個與顯示器整合的可隱藏的屏幕虛擬鍵盤）。平板電腦型號多種，即使是最小的觸屏也比智能手機或個人數(shù)字助理的屏幕大多了?？梢杂脽o線連接或USB插口給平板電腦連接一個鍵盤?？尚D(zhuǎn)筆記本電腦可以通過一個旋轉(zhuǎn)鉸鏈或一個滑動鉸鏈把集成的鍵盤隱藏起來，僅僅在需要觸摸時顯示。混合型計算機配有一個可拆分的鍵盤，這樣觸屏可以當作一個單獨的平板電腦使用。筆記本平板電腦包括兩個觸屏，在其中一個觸屏上顯示虛擬鍵盤就可以作為筆記本使用。Ex 6 1. T 2. T 3. T 4. F 5. F 6. T 7. F 8. T 9. F 10

14、. T 11. F 12. T 13. T 14. T Unit 3Ex 1 1. T 2. F 3. T 4. T 5. T 6. T 7. F 8. F 9. T 10. F 11. T 12. F 13. F 14. T 15. FEx 2 1. microprocessor 2. bus 3. register 4. control unit 5. processor 6. binary 7. arithmetic, logical 8. milliseconds, microseconds, nanoseconds. 9. instruction 10. execution 11.

15、megahertz 12. wordsizeEx 3 A. 1. F 2. A 3. J 4. C 5. D 6. E 7. H 8. I 9. B 10. GB. 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. characters 5. decodes 6. synchronize 7.

16、circuitry 8. internal clockEx. 5 Bus 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.

17、 Common examples are the 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 n

18、umber of low-performance 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

19、to mass storage devices such as hard disk drives and optical drives.2. Universal Serial Bus USB支持多種外接設備的總線系統(tǒng)隨著外接設備數(shù)量的不斷增加，想用擴展卡來應付每一種外圍設備越來越不現(xiàn)實了，這就產(chǎn)生了設計專門支持多種外接設備的總線系統(tǒng)。通常的例子就是現(xiàn)代計算機上的SATA接口，這就允許很多硬盤驅(qū)動器不需要卡就可以同計算機連接起來。但是把這些高性能系統(tǒng)用于低端設備，如鼠標等就很不合算。這就導致同時開發(fā)很多低性能的總線系統(tǒng)解決方案，最常見的例子就是UBS接口。所有這些例子都可以稱作外接設備總線，盡管

20、這個術語還沒有普遍通用。Ex 6 1. T 2. F 3. F 4. T 5. T 6. F 7. T 8. T 9. T 10 FUnit 4Ex 1 1. F 2. T 3. T 4. T 5. F 6. T 7. F 8. T 9. T 10. T 11. F 12. T 13. F 14. T 15. T 16. F 17. F 18. T 19. F 20. T 21. F 22. T 23. F 24. T 25. FEx 2 1. main memory 2. RAM 3. diskettes/floppy disks; hard disks 4. chips 5. parity

21、 6. expanded, extended 7. monochrome 8. cache 9. 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. screenEx 4 1. desktop 2. software 3. animation 4. transferred 5. s

22、ophisticated 6. compatible 7. cache 8. upgradeEx 5 USB 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. Mo

23、st weigh less than 30 g. As of September 2011, drives 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 memor

24、y chip used, and a 10 year shelf storage time. USB flash 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 relia

25、ble because they have no moving parts. Until about 2005, 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 吉字節(jié) 109 字節(jié)； terabyte TB 太字節(jié)，1012 字節(jié)USB閃驅(qū)USB閃驅(qū)是一種數(shù)據(jù)存儲設備，它包含帶有一個集成的通用串行總線（USB）接口 。USB閃驅(qū)通常

26、可以移動并可以重寫，其尺寸要比軟盤小得多，大多數(shù)的重量不到30克。從2011年9月始，市場就出現(xiàn)256 GB的U盤。2太字節(jié)的U盤在籌劃之中，估計U盤大小會更加合理，價格也更合適。有的U盤允許寫/擦10萬個循環(huán)，這取決于存儲芯片的型號，儲存壽命可以達到10年時間。USB閃驅(qū)與軟盤或CD-ROM的目的相同，就是為了計算機文件的存儲、備份和轉(zhuǎn)移。因為它們沒有移動部件，所以體積更小，速度更快，擁有數(shù)千倍的容量，更加持久可靠。到2005年，大部分臺式和膝上電腦還都配備軟驅(qū)，但是軟驅(qū)因為USB插口而被淘汰。Ex. 6 1. T 2. F 3. F 4. T 5. T 6. T 7. T 8. F 9.

27、F 10. F 11. T 12. T 13. T 14. F 15. T 16. F 17. T 18. T 19. F 20. 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. F 14. F 15. T 16. T 17. F 18. T 19. F 20. F 21. T 22. T 23. TEx 2 1. mail, courier 2. hub, star 3. Local Area Network 4. packets 5. Ethernet6.

28、kilobits per second, megabits per second, gigabits per second 7. circuit switching 8. reassembled 9. Internet Protocol, Transmission Control Protocol 10. datagram 11. frames 12. binary, decimal Ex 3 A. 1. C 2. E 3. B 4. F 5. A 6. D 7. H 8. G B. 1. hub 2. zipped 3. decimal 4. frame 5. binary number 6

29、. Internet 7. packet 8. bandwidthEx 4 1. forwarded 2. reassembled 3. are encapsulated 4. cables 5. bursty 6. submit 7. are retransmitted 8. protocol Ex 5 1. E 2. A 3. C 4. F 5. B 6. D 7. H 8. GEx 61. 有意為技術服務人員留下的2. 拋棄、丟失或毀滅的數(shù)據(jù)都進入到數(shù)據(jù)接受器中3. 遠遠不能覆蓋絕大多數(shù)嫌疑人4. 真正奇才所掌握的技術5. 文件和程序6. 1. 系統(tǒng)詳情、擴展其性能 5. 敏感信息的人7

30、. 滯緩的特性和控制開發(fā)的復雜性8. 非常巧妙的權宜之計，旨在解決很棘手的問題9. 不能有效與他人溝通的人10. 一個程序、數(shù)據(jù)結(jié)構或全部程序的11. 交叉指向不合適的新聞組12. 打免費長途電話了；通信網(wǎng)絡，但不單指通信網(wǎng)絡13. 眼睛疲勞14. 無關緊要或令人討厭的瑣碎問題15. 不會有人發(fā)現(xiàn)這些漏洞的，或發(fā)現(xiàn)了也不會利用16. 受人雇傭，為測試系統(tǒng)的安全性而攻入某個地方17. 那種使用許多GOTO、例外或另外的“非結(jié)構的”分支構造18. 不能定期運行適當?shù)囊种瞥绦?9. 某種非常友好程序的20. 遠在沒有正式發(fā)行之前21. 該技術也許不能發(fā)揮作用。如果不能用，程序員也永遠不知道為什么22

31、. Suns 機上使用L1-A；某些Mac機使用!23. 完全喪失功能了；計算機想做某事但不能進行下去了24. 人的神經(jīng)系統(tǒng)，與計算機的硬件或軟件相對；系統(tǒng)的硬件或軟件25. 那種在緊急狀況下能迅速發(fā)現(xiàn)并解決問題26. 思想排外/思想保守Unit 6Ex 1 1. F 2. T 3. F 4. T 5. T 6. F 7. F 8. T 9. T 10. F 11. F 12. F 13. T 14. FEx 2 1. compatible 2. hardcopy 3. terminal, monitor 4. inked ribbon 5. line 6. Thermal 7. Monoch

32、rome 8. liquid crystal displayEx 3 A. 1. G 2. B 3. I 4. F 5. D 6. H 7. C 8. E 9. J 10. AB. 1. printers 2. hard copy 3. CRT 4. hardware 5. pixel6. output 7. software 8. Line printers 9. plotters 10. graphicsEx 4 1. are attached 2. compatible 3. flexible 4. mechanism 5. perform 6. rotate 7. transfer 8

33、. videoEx 5 Electroluminescent Display（電致發(fā)光顯示器）A type of flat-panel display（平板顯示）that uses the property of electroluminescence, whereby a phosphor will emit photons of radiation（光子輻射）when placed in an electric field（電場）. The phosphor is incorporated in a thin coating on the screen; an additional coa

34、ting can produce full color. Electroluminescent screens are used in some large-screen displays, such as airport announcement boards. Nowadays electroluminescent screens are mainly used for small displays in control panels and domestic equipment.電致發(fā)光顯示器這是一種平板顯示器。把熒光粉放置在電場之中就能發(fā)射光子輻射，這就是平板顯示器使用的電致發(fā)光性能。

35、屏幕上有薄薄的熒光粉涂層，這個添加涂層能產(chǎn)生全彩。電致發(fā)光屏幕用于某些巨大的顯示屏上，例如機場通告板。如今電致顯示屏主要用于控制板和家庭設施的小型顯示器上。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. F 14. T 15. F 16. T 17. T 18. T 19. T 20. F 21. T 22. F 23. T 24. T 25. T Unit 7Ex 1 1. T 2. F 3. T 4. T 5. F 6. F 7. T 8. T 9. F 10. F 11. F 12. T 1

36、3. F 14.T 15. T 16. F 17. T 18. T 19. F 20. FEx 2 1. printers, plotters 2. graphics 3. pins 4. pages per minute 5. dots per inch 6. lines per minute 7. non-impact 8. carbonEx 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 printer 4. network5. noise 6. outp

37、ut device 7. desktop publishing 8. dot-matrix printersEx 4 1. installations 2. categorized 3. image 4. ribbon 5. monochrome 6. physical 7. referred to 8. dotEx 5 Digital Technology of Copy MachineThere is an increasing trend for new photocopiers to adopt digital technology, thus replacing the older

38、analog technology. With digital copying, the copier effectively consists of an integrated 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 th

39、em). Some digital copiers can function as high-speed scanners; such models typically offer the ability to send documents via email or to make them available on file servers.A great advantage of digital copier technology is automatic digital collation. For example, when copying a set of 20 pages 20 t

40、imes, a digital copier scans each page only once, then uses the stored information to produce 20 sets. In an analog copier, either each page is scanned 20 times (a total of 400 scans), making one set at a time, or 20 separate output trays are used for the 20 sets.Notes: scanner 掃描儀 collation klei()n

41、 n. 校勘，核對 tray 托盤，文件盤復印機的數(shù)字技術新的復印機越來越趨向于采用數(shù)字技術替代老的模擬技術。數(shù)字復印機有效地把掃描儀和激光打印機整合在一起，這種設計擁有數(shù)個優(yōu)勢，譬如自動圖形質(zhì)量提高，自動工作的能力（掃描和打印互不干涉）。有些數(shù)字復印機如同一個高速掃描儀，這樣的型號通常具有通過email發(fā)送文件的能力，或者給文件服務器提供文件。數(shù)字復印機的最大優(yōu)點在于它可以“自動數(shù)字校驗”。例如當要復印20頁，每頁復印20份的時候，數(shù)字復印機只需每一頁掃描一次，然后使用儲存的信息復印20份。如果是模擬復印機，要么每一頁都要掃描20次（一共要掃描400次），一次復印一份；要么每頁復印20份，2

42、0頁分別放在20個輸出托盤中。Ex.6 1. F 2. T 3. T 4. T 5. F 6. T 7. F 8. T 9. T 10. F 11. T 12. T 13. F 14. F 15. T 16. F 17. T 18. F 19. T 20. T 21. T 22. F 23. T 24. T Unit 8Ex 1 1. T 2. F 3. T 4. T 5. F 6. T 7. F 8. F 9. F 10. T 11. F 12. T 13. T 14. F 15. T 16. T 17. F 18. T 19. T 20 F 21. F 22. T 23. T 24. FE

43、x 2 1. Local area networks, wide area networks 2. client-server 3. bus 4. protocol 5. hardware 6. microwaves 7. adapter, router 8. stack 9. upper, lower 10. layered Ex 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. inception 7

44、. B. wide 8. F. WirelessEx 4 1. layout 2. accommodate 3. conforms 4. address 5. interoperable 6. session 7. has been designated/was designated等 8. configuringEx 5 1. H 2. A 3. F(transmits) 4. C 5. D 6. E 7. B 8. GEx 61. T 2. T 3. F 4. T 5. F 6. F 7. T 8. T 9. T 10. T 11. T 12. F 13. T 14. T 15. T 16

45、. F 17. F 18. T 19. F 20. T 21. T 22. T 23. T 24. F 25. T 26. T 27. T 28. F 29. F 30. F 31. T 32. T 33. F 34. T 35. T 36. F 37. T 38. F 39. F 40. F 41. T 42. T 43. T 44. FUnit 9Ex 1 1. T 2. T 3. F 4. T 5. F 6. F 7. T 8. T 9. T 10. F 11. T 12. F 13. T 14. F 15. T 16. T 17. T 18. FEx 2 1. channels 2.

46、eletrical pulses or charges, eletromagnetic waves, pulse of light 3. telephone lines, coaxial cables, microwave systems, satellites systems, fiber optic cables 4. telephone lines 5. networks 6. atmosphere 7. microwave tower 8. gigahertz 9. digital 10. lightEx 3 A. 1. B 2. D 3. F 4. G 5. A 6. C 7. E

47、8. HB. 1. noise 2. transmission 3. Fiber optics 4. Microwave 5. sychronous6. optical media 7. Coaxial cable 8. digitsEx 4 1. communicate 2. revolves 3. detect 4. encrypted 5. nonconductive 6. frequency 7. susceptible 8. relayed 9. antenna 10. PulsesEx 5 SmartphoneTo really understand what a smartpho

48、ne is (and is not), we should start with a history lesson. In the beginning, there were cell phones and personal digital 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

49、contact info and a to-do list, and could sync with your computer.Eventually, PDAs gained wireless connectivity and 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 eve

50、n computer-like) features. The result was the smartphone.智能手機要真正理解什么是智能手機，什么不是智能手機，我們應該從了解歷史開始。起初人們使用手機和個人數(shù)字助理。手機只是用來打電話，而數(shù)字助理，如掌上電腦，是個人便攜式的記事本。一臺個人數(shù)字助理能儲存你的聯(lián)系信息以及將要處理的事情，可以和電腦同步。最終，個人數(shù)字助理開始了無線連接，能夠發(fā)送和接收電子郵件，而手機也具備了獲取信息的能力。個人數(shù)字助理添加手機功能，手機也增添個人數(shù)字助理（甚至計算機）的特性，其結(jié)果就是智能手機。Ex. 6 1. F 2. F 3. T 4. F 5. F 6

51、. F 7. T 8. F 9. T 10. T 11. T 12. TUnit 10Ex 1 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. F 9. F 10. T 11. F 12. T13. F 14. F 15. T 16. F 17. T 18. F 19. T 20. TEx 2 1. download, contract/infect 2. macros 3. viruses 4. timer 5. client 6. recognize 7. reformat 8. back up Ex 3 A. 1. B 2. E 3. F 4. A 5. C

52、6. G 7. D 8. H B. 1. informative 2. programmed/is programming等 3. responsive 4. attachment 5. chat group 6. The bottom line 7. inoperabl8. is scannedEx 4 1. has rendered 2. embedded 3. update 4. are contracted 5. wired 6. theorized 7. replicate 8. activatedEx 5 1. C 2. G 3. A 4. F 5. H 6. B 7. E 8.

53、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. F 14. F 15. F 16. F 17. T 18. T 19. F 20. F 21. T 22. T 23. T 24. T 25. F 26. F Unit 11Ex.1 1. T 2. T 3. F 4. F 5. T 6. T 7. F 8. T 9. T 10. T 11. F 12. F 13. F 14. T 15. T 16. T 17. T 18. T 19. F 20.F Ex 2 1. HTML, the hypertext markup language 2. components 3. ASCII files4. markup tags 5. webmaster 6. Heads, tables, paragraphs, lists 7. tags 8