计算机专业英语07757

发布日期:2013-11-12 点击次数:3456

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计算机专业英语（一）内部资料 严禁外泄

第一部分

I．Multiple choices

1. Which of the following feature of a word processor becomes more useful with the growth of the amount of text?  ( A )

A. wording searching    B. grammar checking   C. word counting   D. spell checking

2. Which of the following feature of a word processor can show underline, bold, italic, font and other typing styles on the screen? (B)

 A. WYSIWGY     B. WYSIWYG   C. WSYIWYG    D. WYSWIYG

3. Which of the following does NOT belong to hidden characters or commands?(A)

        A. retrieval     B. spaces   C. returns    D. paragraph endings

4. Before typing in any data, a user needs to  C      .

   A. edit the cell   B .save the cell   C. select the cell  D. change the cell

5. Each cell of a worksheet can hold____A___.

  A. one piece of data   B. two pieces of data  C. three pieces of data  D. four pieces of data

6. Where is the Entry Bar of a worksheet?(A)

  A. below the icons of the worksheet   B. above the icons of the worksheet

  C. at the left of the icons of the worksheet       D. at the right of the icons of the worksheet

7. All functions in spreadsheets start with ____B____.

  A. a dollar sign    B. an equal sign  C. question mark   D. star

8. Which of the following can NOT be created by spreadsheets?(B)

  A. bar chart    B. start chart   C. three-dimensional chart    D. pie chart

9. Which of the following message can be sent by E-mail without an attachment? (A)

  A. text message    B. graphical message  C. audio message   D. video message

10. Which of the following can be applied for an E-mail message without an attachment? (D)

  A. bold     B. underline   C. italics     D. none

11. Which of the following does NOT belong to one of the E-mail advantages? (D)

  A. instantaneousness  B. efficiency   C. group sending feature  D. none

12. A private network-based E-mail system is not for ___B_____.

  A. corporate users    B. home users  C. school users   D. hospital users

13. An E-mail server can be considered as a ____C_____.

 A. powerful operating system   B. high-duty database system

 C. high-configuration computer  D. practical Internet application

14. Which of the following is called a searching engine?(B)

 A. Web server    B. Web browser   C. Web site    D. Web address

15. Which of the following is NOT an Internet application?(C)

 A. IRC      B. audio chatting   C. file compiling    D. video chatting

16. To start an online chatting, a user needs to know____D____.

  A. the software name of an IRC client   B. the Web service provider of an IRC client

  C. the program name of an IRC client    D. the Web address of an IRC client

17.  Once a user starts an IRC client, the server on the IRC service provider side will provide the user a____A____.

   A. channel      B. server   C. hardware  D. program

18. What does the WWW stand for? (A)

   A. World Wide Web  B. World Wide Work  C. World Wide Watch   D. World Wide Wave

19. Which of the following is the primary function of the WWW? (A)

    A. accessing resources B. sending and receiving E-mails

   C. IRC  D. Video conferencing

20. Which of the following is NOT supported by the WWW? (D)

   A. Gopher    B. FTP   C. Usenet    D. File compiling

21. To accommodate a binary number, which of the following of a computer doesn't have more digits than those for decimal numbers do? (D)

  A register       B. bus    C. port      D. keyboard

22. Which of the following unit provides signals to start the operations in the ALU, the memory and the input/output unit? （D）

 A. logical unit   B. arithmetic unit  C. input/output unit     D. control unit

23. What does IC stand for? (B)

A. Intelligent Card    B. Intelligent Circuit  C. Integrated Card       D. Integrated Circuit

24. How many the most influential components does a computer system configuration include?(B)

   A. 3          B. 4      C. 5               D. 6

25. Which of the following does NOT belong to one of the most influential components of a computer system configuration? (B)

   A. the memory      B. the operating system

   C. the input/output devices       D. the storage devices

26. Which of the following memory will lose the data stored in it when the power is gone or a malfunction occurs? (C)

    A. the ROM   B. the virtual memory     C. the RAM           D. the buffer

27. The permanently useful data is stored in which of the following(A)

memory?

    A. the ROM  B. the virtual memory    C. the RAM       D. the buffer

28. Which of the following does NOT belong to a computer hardcopy output? (D)

    A. a graph        B. a photo     C. a text files       D. voice

29. Which of the following does NOT belong to a computer hardcopy output device? (B)

    A. a plotter       B. a monitor  C. an ink-jet printer    D. a laser printer

30. Which of the following belongs to an impact computer hardcopy output device? (A)

A. a plotter       B. an ink-jet printer    C. a laser printer    D. monitor

31. Which of the following is the major advantage of a DVD-ROM over a CD-ROM?  (D)

    A. portability     B. price     C. material      D. capacity

32. Which of the following is the major advantage of a CD-R or a CD-RW over a CD-ROM or a DVD-ROM? （D）

     A. speed     B. price       C. material       D. writing data

33. Which of the following is the major advantage of a U-disk over a hard disk? (C)

     A. speed     B. price    C. easy to carry         D. writing data

34. Which of the following is NOT one of the most commonly used software-relevant terminologies? (A)

     A. data      B. program     C. operating system     D. application software

35. Which of the following is the most fundamental concept of computer software? (B)

     A. operating system   B. program  C. application software    D. system software

36. What is a computer program? (D)

     A. a set of operations and tasks          B. a set of operations and data

     C. a set of tasks and data               D. a set of instructions

37. Which of the following does NOT belong to computer system software? (C)

     A. operating system            B. system utility

     C. word processing program     D. language compiler

38. Which function of a word processor can ensure typing correctness?(C)

     A. hidden commands  B. typeface    C. spell checking          D. space

39. What do users need to do with the spell-checked files to ensure their correctness?(B)

     A. proof check  B. proofread    C. through check    D. double-check

40. Which of the following is NOT one of a word processor's functions?(C)

     A. spell-checking typed text     B. grammar checking typed text

     C. compiling typed text         D. counting typed text

41. Which of the following is NOT one of the most commonly used software-relevant terminologies?  (A)

 A. data   B. program    C. operating system   D. application software

42. A computer processes __________ into____B___.

 A. information/data  B. data/information   C. facts/data   D. information/facts

43. Data flow into the computer as  D  .

A. output     B. a program   C. a process     D. input

44. Information flows from a computer as ____A_____.

A. output     B. memory       C. a program    D. input

45. The ___B_____distinguishes a computer from a calculator.

 A. processor   B. stored program   C. memory     D. output

46. Data and program instructions are stored in ___D_____ .

  A. the processor     B. an output device   C. the stored program    D. memory

47. The computer component that actually manipulates the data is__C___.

  A. main memory     B. an input device      C. the processor      D. an output device

48. The physical components of a computer are collectively called__D___.  

  A. peripherals     B. software        C. boards         D. hardware

49. Programs are known collectively as____B_____.

  A . secondary storage   B . software     C . stored programs    D . hardware

50. A physical switch is      B       ; its setting is      .

   A. software/hardware    B. hardware/software  C. hardware/data     D. data/information

51. A ____B_____ holds enough bits to store a single character.   

     A. word          B. byte           C. bit            D. chip

52. A __________is a group of ____C_____ 

  A. bit/bytes      B. byte/words    C. word/bytes    D. character/bytes

53. The " digit-times-place-value "rule work, with      but not with__A__.  

   A. numbers/ characters  B. bits/bytes   C. bytes/words     D. characters/numbers

54. A location in memory is accessed by its____A_____.

   A. address        B. value              C. content        D. register

55. When memory is       C       .its contents are not changed.

   A. written          B. accessed       C. read     D. it's always changed

56. The programmer can read and write      B        . 

     A. ROM      B. RAM         C. words      D. bytes

57. What type of memory can only be read? (B)

     A. registers        B. ROM          C. RAM          D. words

58. The processor fetches and executes____C____.

     A. clock pulses      B. data     C. instructions      D. information

59. The part of an instruction that tells the processor what to do is the ___D__.

     A. operand      B. pulse   C .statement     D. operation code

60. The processor's, components are synchronized by___D____.  

A. instructions    B. data    C. information   D. clock pulses

61. Which processor component executes instructions?  (C)

A. instruction register      B. instruction control unit  

C. arithmetic and logic unit  D. main memory

62. The basic input device on a small computer is a ___C____ .

   A. display screen       B. printer        C. keyboard   D. card reader

63. The basic output device on a small computer is a____B___ .

   A. keyboard        B. display screen         C. diskette         D. plotter

64. A       D      generates hard- copy output.  

   A. display unit     B. screen      C. monitor       D. printer

65. A display screen is divided into a grid of ____C____.    

   A. bytes             B. bits     C. pixels             D. words

66. External devices are linked to a small computer system through__B__.  

   A. channels         B. control units               C. plugs     D. interfaces

67.The        D       translates between the computer's internal codes and a peripheral device's external codes.  

A. processor      B. interface     

 C. memory       D. register

68. A        A       terminal communicates with a distant computer over data transmission lines. 

  A. remote              B. display           C. printing             D. local

69. The interference that distorts electronic signals transmitted over a distance is called__C____.  

   A. static          B. interference              C. noise          D. a spike

70.     A         network can be worldwide. 

  A. Wide area    B. Metropolitan area       C. Local area   D. Campus area

71.       B       networks usually span tens of kilometers.  

  A. Wide area     B. Metropolitan area     C. Local area     D. Ethernet

72. The Open Systems Interconnection (OSI)reference model is based on a proposal developed by____D_____. 

  A. ANSI        B. IEEE        C. IAB       D. ISO

73.     B         is concerned with controlling the operation of the subnet. 

  A. The transport layer  B. The network layer  C. The application layer  D. The data link layer

74.      A        is concerned with transmitting raw bits over a communication channel. 

   A. The physical layer  B. The presentation layer    C. The network layer  D. The data link layer

75. The main task of       D       is to transform a raw transmission facility into a line that appears free of undetected transmission errors to the network layer. 

   A. The physical layer   B. The session layer   C. The network layer  D. The data link layer

76.        B         allows users on different machines to establish sessions between them.

   A. The physical layer  B. The session layer   C. The network layer  D. The data link layer

77. The ____D_____ serves as a hardware/software interface.

A. system   B.  Application program   C control unit    D. operating system

78. The source of a computer’s logic is _____B_____.  

A. hardware  B. software     C. data      D. the user

79. A disk drive is limited to a few___C____.                                 

    A. tasks     B. program functions     C. primitive operations   D. I/O operations

80. Programmers write ___B_____code. 

A. object           B. source    C. machine-level     D. load module

 

II.Cloze

81:

A database system gives us a way of   1(B)   together specific pieces or lists of   2(B)    that are relevant to us in our jobs or our lives. It also provides a way to   3(D)  and maintain that information in a central place. The first commercial computers were really   4(B)  more than dedicated database machine used to gather, sort and report on census information. To this day, one of the most common reasons for purchasing a computer is to   5(C)   a database system.

供选择的答案：

1: （A）gather     (B) gathering      （C）get         (D） getting

2:  (A) data        (B) information     (C) mail         (D) message

3: （A）build      (B) copy          （C） remember   (D) store

4:  (A) anything    (B) nothing        (C) something     (D） thing

5:  (A）find       (B) load           (C） run        (D) install

82.

Toolboxes and menus in many application programs were  6(B)   for working with the mouse. The mouse controls a pointer on the screen. You move the pointer by  7(B) the mouse over a flat surface in the direction you want the pointer to move. If you run out of  8(C)   to move the mouse, lift it up and put it down again. The pointer moves only when the mouse is   9(D)   the flat surface. Moving the mouse pointer across the screen does not affect the document, the pointer simply   10(B)   a location on the screen. When you press the mouse button, something happens at the location of the pointer.

供选择的答案：

6:（A） assigned （B） designed    （C） desired  （D） expressed

7:（A） putting      （B） sliding  （C）serving    (D) taking

8:  (A) board     （B） place       （C） room        (D) table

9:（A） getting    （B） going      (C） teaching    (D) touching

10: (A） constructs （B） indicates   （C） instructs   (D) processes

 

83.

The boot is to   11(B)   automatic routine that clears the memory,  loads the operating system, and prepares the computer for   12(C)    Included in the computer's read-only memory (ROM is the power-on-self-test, which   13(A)  when the power is switched on (a cold hoot.

    After a system   14(B)  or lockup occurs, you usually must boot the computer again, or reboot, by  15(A)  the Reset button or Ctrl + Alt + Del (a warm boot).

11: (A） clear    (B) initiate     (C) insert  (D) push

 12: (A) create     (B） handle  （C）use  （D） route   

13:（A）executes  (B)exits     （C）loads  (D）reads

14: (A) communicate   (B) crash   (C) create  (D） handle

15: (A) pressing （B） pulling   （C）seeing (D)writing

84:

Perhaps you have been asking the questions: Is everyone moving to  16(C)   ? If I don't step to the  17(A)   user interface, will I be left all along at the cold    18(A)  command line?

     Don't throw away your  19(D)  . No one is   20(C)  DOS's death knell yet. DOS and its applications people have using for years are not going to stop working overnight.

供选择的答案：

16: (A) DOS     (B) UNIX     (C) Windows      (D) Windows NT

17: (A) graphical  (B) software  (C) command line  (D) Windows NT   

18: (A) DOS     (B) UNIX     (C) Windows      (D) Windows NT

19: (A)hardware     (B) text     (C) Windows      (D) software

20: (A) software     (B) hardware     (C) sounding      (D) text

 

85．Mark the following sentences with T ( true) or F (false) according to the dialogue

1. The smallest unit of the memory is the magnetic cell. T

2. Magnetic cells use the "write" and "read" currents with same direction to store and retrieve data. F

3. The most influential component of a computer system configuration is the memory. F

4. The system clock is the brain of a computer.  F

5. Both ink-jet and laser printers are non-impact printers; they are based on the same principle. F

6. Ink-jet printers have pins in their printing heads to form dots to produce printed results. F

7. A plotter is the popular hardcopy output device commonly used in the education sector. F

8. Word processors ease much of tedium associated typing, proofing. and manipulating words. T

9. The real strength of a word processor is its ability to store, retrieve , and change data. T

10. The implementation of the WWW is based on a standard client-server model. T

11. All Von Neumann type digital computers consist of the input/output unit, the arithmetic unit, networking unit, the control unit and the memory. F

12. A scanner belongs to the input/output device. T

13. A binary number needs more computer resource to accommodate than a decimal number. T

14. The operations on decimal numbers are much easier and need much less time than in a binary system. F

15. HTML is so important to the WWW that it is recognized every where on the WWW. F

16. The Web server is the only component of the WWW that is able to read the HTML. F

17.  E-mail is a method of sending and receiving messages on the Internet.  F

18. Generally speaking, most of E-mail systems do allow text formatting. F

19. Users have to attach word-formatted texts to their E-mail messages if they have to send word-formatted texts. T

20. Instantaneousness and high efficiency are major advantages of the E-mail application T

 

86．Match the following two columns

1. Computer software    A. provides support for application software.  1-C

2. System utilities       B refers to Microsoft Disk Operating System.  2-F

3. System software      C is a set of computer programs. 3-A

4. Operating systems     D. has been widely used in CAD programs.4-J

5. MS-DOS            E. are more suitable for PC users. 5-B

6. The Unix            F. can be understood as system 6-D

 tune-up programs.

7. The Linux           G. are truly powerful enterprise-level computing tools.7-I

8. The Unix and Linux   H. is the first Windows operating system 8-G

                        in a real sense.

9. MS Windows        I. has been adopted for Internet servers.9-E

10. Windows 95        J. are preloaded onto computers by computer makers.10-H

 

11. The storage device          A. sends out pulses regularly. 11-E

12. A CPU includes            B. faster than a RAM. 12-C

13. The wide of the bus         C. the ALU and the controller. 13-J

14. The system clock           D. is used to read and write data.14-A

15. ROM                    E. belongs to the system configuration of a computer.15-I

16. A buffer runs              F. the buffer first when it needs data  16-B

                             to operate.

17. A CPU searches            G. exchange sections of data when  17-F 

                            necessary.

18. A hard disk and a RAM      H. is the extension of the RAM.18-G

19. A RAM                   I. is able to keep the data stored in19-D

                               it when the power is gone.

20. The virtual memory        J. is also called the "word length" 20-H

V．Translating

87. Internet resource access is the primary function of the World Wide Web.

万维网的主要功能是提供互联网的访问服务。

88．The WWW can be described as an internet application platform.

我们可以把万维网描述为一个互联网应用平台。

89. User must get their E-mail systems setup first before they can use them.

用户必须在电子邮件系统设置完毕后才能使用这些系统。

90.MS-DOS is a command line interface-based operating system.

  MS-DOS 是命令行界面型操作系统。

91．We have the input/output and store devices to go.

  我们还有输入/输出设备和存储设备有待讨论。

92. Gopher, FTP, Usenet and Web sites are the ways the WWW offers to access the resources located on the Internet.

  万维网提供Gopher、FTP、Usenet和Web sites 等访问互联网资源的途径。

93. With E-mail services, computer users can receive and send messages in a pretty convenient way.

  有了电子邮件系统,计算机用户就能方便的收发信息。

94. A user can’t start receiving and sending messages without an E-mail account.

  没有电子邮件账户用户无法开始收发信息。

95. A user needs to select the cell where date goes first and then type in the date.

  用户得先选择输入数据的单元然后输入数据。

96．Operating system is the most important type of computer system software.

  操作系统是最重要的计算机系统软件。

 

第二部分

 

97. How many layers does the ISO/OSI mode have? (seven )

98. External devices are linked to a small computer system through (interfaces ).

99.CPU has only two fundamental sections: the arithmetic and logic unit and (the control unit ).

100. Objected-based logic models are used for (  describing data at the conceptual and view levels   )

101. arithmetic and logic unit executes instructions

102. Which is an simply the application of internet technology within an internal or closed group?(   intranet   )

103． CD-ROM belongs to (optical laser disk )

104. A collection of conceptual tools for describing data, data relationships, data semantics and data

constraints is a (data model )

105.The Open Systems Interconnection (OSI)reference model is based on a proposal developed by ( ISO  )

106. The software that allows one or many persons to use and/or modify this data is a (DBMS )

107. The physical components of a computer are collectively called   (hardware  ).

108. The most popular processor interconnection topology is the (hypercube ).

109. The part of an instruction that tells the processor what to do is the (operand  ).

110. The part of an instruction that tells the processor what to do is the (operation code ).

111.The permanently useful data is stored in (  the ROM )

112. The interference that distorts electronic signals transmitted over a distance is called (noise ).

113. All functions in spreadsheets start with  (an equal sign  ).

114. An E-mail server can be considered as a (powerful operating system   )

115. A programming technique that allows you to view concepts as a variety of objects is called (object oriented programming )

116. The interference that distorts electronic signals transmitted over a distance is called (noise   ).

117. A program instruction or a piece of data is stored in a specific primary storage location called an (address )

118. A bus that is used to control the access to and the use of the data and address bus is called (control bus)

119. A location in memory is accessed by its (address  ).

120. A small piece of code that can be transported over the Internet and executed on the recipient’s machine. The sentence describes (applet  )

121. An E-mail server can be considered as a (high-configuration computer ) .

122. A protocol is a set of (regulations  ).

123. Which networks usually span tens of kilometers?( Metropolitan area  )

124. A computer system has input, output, storage, and (CPU  ).

125. All Intranet related documents are written in ( HTML  )

126. The WWW is based on which of the following standards? (client-server model )

127. WWW stand for World Wide Web

128. All functions in spreadsheets start with  (an equal sign ).

129. Programmers write (  source code ).

130. Primary storage  provides the CPU with temporary storage for programs and data

131. When a CPU needs the data to operate, it goes where first? (the cache ).

132. When hypertext pages are mixed with other media, the result is called(hypermedia )

133. The “brain” of a computer system is (CPU  )

134. A program instruction or a piece of data is stored in a specific primary storage location called an (address  )

135. The ISO/OSI mode has (seven  ) layers

136. What does a worksheet mean? (a working area framed by letters and numbers  )

137. Before typing in any data, a user needs to (select the cell).

138. A computer system has four parts, they are output, storage, processing components and (input  )

139. Another name for primary storage is (RAM ).

140. The Open Systems Interconnection (OSI) reference model is based on a proposal developed by (ISO ).

141. The basic output device on a small computer is a (display screen  ).

142. To prevent user programs from interfering with the proper operation of the system, the hardware was modified to create two models: (User mode and monitor mode )

143. A data model is a collection of conceptual tool for describing (data, data relationship, data semantics, data constraints  )

144. What kind of computer would apply several instructions to each datum it fetches form memory? (MISD )

145. What is a computer program? (a set of instructions )

146．A communication pathway connecting two or more devices is a (channel )

147. How many basic units do today's digital computers consist of? ( 4 )

148. LCD is based on  TFT

149. Optical laser disk includes CD-ROM, magneto-optical disk and (WORM disk )

150. A special type of primary storage which cannot be altered by the programmer is called (ROM )

151.  A list of protocols used by a certain system , one protocol per layer, is called a (protocol stack )

152. The realization of the mobile internet relies on a new set of standards ,known as the (WAP )

153. What does A worksheet mean? (an EXCEL program )

154. How many different types of Entity relationships are there?(   4   )

155. What kind of computer would apply one instructions to each datum it fetches form memory? (SISD )

156．Cache memory is employed by computer designers to increase computer system (throughput )

157. The Central Processor has only two fundamental sections (the control unit and the arithmetic and logic unit)

158. The Open Systems Interconnection (OSI) reference model is based on a proposal developed by (ISO ).

159. The basic output device on a small computer is a (display screen  ).

160. How many parts are there in URL? (3  )

161. All Intranet related documents are written in (HTML  )

162. A computer system has five parts, they are input, output, processing components , control unit and (storage ).

163. What does HTTP stand for? (Hypertext Transfer Protocol )

164．How many record-based logical models are widely used ?(  3  )

165. How many different types of Entity relationships are there?(  4   )

166. Normally, how long does a user need to wait until his/her E-mail account is ready if he/she applies for it from an ISP ? (no time )

167. A bus that is used to designate the source or destination of the data on the data bus is called (  address bus )

168. Output devices don’t include (scanner )

169.What does IC stand for? (Intelligent Circuit )

170.The software which acts as an interface between a user of a computer and the computer hardware is (operating system )

171.The protocol which downloads files free of charge from thousands of computers around the globe is (FTP protocol )

172. Output devices don’t include (mouse )

173. Data and program instructions are stored in (memory ).

174. How many main categories of optical laser disks are there? (3 )

175. A protocol is a set of (regulations  ).

176. What is a set of programs that manipulate encoded knowledge to solve problems in a specialized domain that 81.normally requires human expertise? (Expert system )

177. How many layers does the TCP/IP layering model have? (5 )

178. Another name for primary storage is (RAM ).

179. How many basic operating system types are there? (3 ).

180.Which one can be rewritten? (U-DISK )

181.If an object inherits its attributes from a single parent, it is called(single inheritance )

182. The “brain” of a computer system is (CPU  )

183. How many classes are the data models divided into?(   3   )

184. What does the WWW stand for? (World Wide Web )

185. A computer system has five parts, they are input, output, storage, control unit and (processing components  ).

186.The way each object combines its member data and member functions into a single structure is called (Encapsulation )

187. The standard query language of relational database is (SQL   )

188. Creating the database and its table structure uses (  data definition  )

189. LCD is based on which of the following? (TFT )

 

190.class hierarchy类层次

191.XML可扩展标记语言

192.Intranet内部网

193.data bus数据总线

194.Operating system操作系统

195.CAD计算机辅助设计

196.Neural Networks  神经网络

197. topology analysis拓扑分析

198.ADO    ActiveX数据对象

199. multiprogramming                 多道程序设计

200. ODBC 开放数据库互连

201.VR           虚拟现实

202.cache memory 高速缓冲存储器

203.FTP文件传输协议

204.system bus系统总线

205. GUI   图形用户界面

206.ROM只读存储器

207.object-oriented programming面向对象编程

208.virtual reality虚拟现实

209.主存(Main memory   )

210.调制解调器(modem   )

211.可编程只读存储器    (PROM   )

212. off-line operation 脱机操作

213.客户端/服务器 (Client/Server   )

214.多媒体  (Multimedia   )

215.虚函数  (virtual function   )

216. neural network    神经网络

217.VDT 视频显示终端

218.EDI    电子数据交换

219.CAM    计算机辅助制造

220. RDBMS 关系型数据库管理系统

221.database数据库

222.RAM随机存储器

223.工具条(  toolbar  )

224.统一资源定位符( URL   )

225.统一资源标识符( URI   )

226.人工智能      (  Artificial Intelligence  )

227. KDD         数据库中的知识发现

228.面向对象      (Object Oriented   )

229.图形用户接口  (Graphical user interface   )

230.中央处理器( CPU   )

231.计算机网络(  computer network 

232.国际互联网 (   Internet )

233.计算机辅助制造(  CAM  )

234.软件工程      (software engineering)

235.视频压缩      (video compression   )

236.算术逻辑部件                               ( ALU   )

237.计算机应用    (computer application   )

238.电子商务      (Electronic Business   )

239.虚拟现实      (virtual reality   )

240. EJB         企业Java Beans

241.图形用户接口(Graphical user interface   )

242.应用编程接口  (API   )

243.视频点播VOD

244. memory stick      记忆棒

245.传输控制协议/互联网协议   (  TCP/IP  )

246.万维网( WWW   )

247.地理信息系统( GIS   )

248. RAP 快速应用程序原型技术

249.只读存储器                                (  ROM  )

250.系统软件      (  system software  )

251.磁盘操作系统                                           (DOS    )

252.结构化查询语言                                         (  SQL  )

253.虚拟专用网                              ( VPN   )

254.开放式系统互联                           ( OSI   )

255.个人数字助理  (PDA   )

256. VLSI  超大规模集成电路

257.带宽    (bandwidth   )

258.集成电路      (integrated circuit   )

259.结构化编程    (Structured programming   )

260.复杂指令集计算机    (   CISC )

261.短信消息服务  (  SMS  )

262.PCI 外围设备互连

263. real time operating system   实时操作系统

264.OODBMS             面向对象的数据库管理系统

265.abstract data type 抽象数据类型

 

266.CD-R recorders are used to duplicate CDs(  T  )

267.The system clock is the brain of a computer. (  F  )

268.Cache memory is much faster than RAM. (   T )

269.Internet resources are stored on Web servers. (  T  )

270.Windows 2000 is the first Windows operating system in a real sense.(  F  )

271.We can view an operating system as a resource manager. (   T )

272.You can connect 255 devices to a computer by USB. (   F )

273.The single-sided DVD can store 6.5GB of data. (  F  )

274.Keyboard and mouse are both the input devices of the computer. (  T  )

275.Cache memory is more expensive than RAM.(   T )

276.Both the user names and the passwords must be unique for E-mail accounts.( F   )

277.ALU is one of the components of CPU.(  T  )

278.JAVA is a Object-Oriented programming language.(  T  )

279.You can connect 120 devices to a computer by USB. (   T)

280.PROM is the abbreviation of portable read –only memory. (  F  )

281.Buffering is an approach to improving system performance. (T    )

282.Microsoft Windows 2000 is an operating system of the computer. ( T   )

283.PCI is a popular low-bandwidth bus. ( F   )

284.Printer is the input device of the computer. (  F  )

285.The system clock sends out pulses regularly. ( T   )

286.FTP is a protocol of the computer network. (  T  )

287.HTTP stands for High Transportation Port. ( F   )

288.A cache runs as fast as a RAM. (  F  )

289.CPU has only one fundamental section: the control unit. (  F  )

290.Hard disks and floppies operate in different ways. ( F   )

291.Cache memory is much faster than RAM. ( T   )

292.VDT stands for video display terminal. (  T  )

293.System bus provides a path for moving data between system modules. ( F   )

294.CD-ROM stands for compact disk read-only memory. (  T  )

295.The single-sided DVD can store 6.5GB of data. (  F  )

296.Buffering is an approach to improving system performance. ( T   )

297.WWW stands for World Wide Web. (   T )

298.There 3 main categories of optical laser disks: CD-ROM, DVD and VCD. (  F  )

299.You can connect 255 devices to a computer by USB. (  F  )

300.JAVA is a Object-Oriented programming language. ( T   )

301.An OS is the software which acts as an interface between a user and a computer. ( T   )

302.Buffering is an approach to improving system performance. (  T  )

303.Microsoft SQL server 2000 is an operating system of the computer. ( F  )

304.Microsoft Office 2003 is operating system software. ( F   )

305.FTP is a protocol of the computer network. ( T   )

306.The Web browser is used to display the data stored on the Internet. (  T  )

307.PCI is a popular low-bandwidth bus. (F    )

308.A buffer's capacity is low and price is high, and it runs as fast as a RAM. ( F   )

309.Primary storage provides CPU with temporary storage for programs and data. (T)

310.The wide of the bus is also called the "word length". (  T  )

311.The single-sided DVD can store 6.5GB of data. (  F  )

312.A CPU includes the ALU and the controller. (   T )

313.MS-DOS refers to Microsoft Disk Operating System. (  T  )

314.CD-R recorders are used to duplicate CDs (  T  )

315.You can connect 255 devices to a computer by USB. (  F  )

316.Cache memory is much faster than RAM. ( T   )

317.Printer is the I/O device of the computer. ( T   )

318.DVD provides CPU with temporary storage for programs and data. (F    )

319.JAVA is a structured programming language. (  F  )

320.C is an Object-Oriented programming language. ( F   )

321.Internet resources are stored on Web servers. (  T  )

322.You can connect 127 devices to a computer by USB. (  T  )

323.MS Office 2000 is the first Windows operating system in a real sense. ( F   )

324.We can view an operating system as a output hardware. (   T )

325.PDA is one of the components of CPU. ( F   )

326.The single-sided DVD can store 6.5GB of data. (F    )

327.Keyboard and mouse are both the input devices of the computer. ( T   )

328.Cache memory is less expensive than RAM.(   F )

329.he user name must be unique for E-mail accounts. (  T  )                                                  

330.ALU is one of the components of CPU. ( T   )

331.Keyboard and mouse are both the input devices of the computer. ( T   )

332.PCI is a popular low-bandwidth bus. (  F  )

333.The single-sided DVD can store 6.5GB of data. (  F  )

334.You can connect 255 devices to a computer by USB. (  F  )

335.We can view an OS as a resource manager. (  T  )

336.Windows 95 is the first Windows operating system in a real sense. ( T   )

337.CD-R recorders can be used to duplicate CDs(  T  )

338.Microsoft Office 2003 is an operating system software. (  F  )

339.WWW stands for World Wide Web. (  T  )

340.Buffering is an approach to improving system performance. ( T   )

341.PROM is the abbreviation of portable read –only memory. ( T   )

342.ROM is the abbreviation of read of memory. ( F   )

343.Hard disk provides CPU with temporary storage for programs and data. (F    )

344.MS-DOS is a Object-Oriented programming language. ( F   )

345.OS is the software which acts as an interface between a user and a computer. ( T   )

346.MS Windows 2000 is a hardware component of computer. (  F  )

347.FTP is not a protocol of the computer network. ( F   )

348.C++ language is a structured programming language. (  F  )

349.Linux is an operating system. (  T  )

350.To format a floppy means that magnetic areas are created. (  T  )

351.A scanner belongs to the output device. ( F   )

352.URL is used to locate Internet resources. (   T )

353.E-mail is a method of sending and receiving messages on the Internet. (   F )

354.HTML is used to write Web pages.(   T)

355.CD-Rrecorders are used to duplicate CD(  T  )

356.XML is used to write Web pages.(  F  )

357.The CPU is the brain of a computer( T   )

358.Cache memory is as fast as RAM. ( T   )

359.C++ language is a structured programming language.(  F  )

360.Linux is an operating system. (  T  )

361.HTTP is used to locate Internet resources. (   F )

362.PCI is abbreviation of peripheral component interconnect.(  T  )

363.A U-disk belongs to the output device.(  T  )

364.E-mail is a method of sending and receiving messages on the Internet.                           (  F  )

 

365.  Thread         is sometimes called lightweight process.

366.A collection that stores objects of the same data type is referred to as a  homogeneous         collection.

367.A    virus scanner           is a program that is designed to check an entire computer system for known viruses or suspicious activity.

368.A stack  is a list of items that are accessible at only one end of the list.

369.    Electronic Business         is the integration of IT and particularly the Internet into business processes to change organizations and create new ones.

370. Cache memory is employed by computer designers to increase the computer system   throughput     .

371.The operating system acts as the  manager   of system resources and allocates them to specific programs and users as necessary for their tasks.

372.   Hubs   can be categorized as either CSMA/CD or full-duplex  repeaters.

373.   Frequency division multiplexing (FDM)     is the technical term applied to a network system that uses multiple carrier frequencies to allow independent signals to travel through a medium.

374.The    Unified Modeling Language(UML)          is a graphical language for visualizing , specifying , constructing , and documenting the artifacts of a software-intensive system.

375.Data query    uses a set of commands to explore the database contents and allows the user to convert the raw data into useful information.

376. Another important object-oriented concept that relates to the class hierarchy is that common messages can be sent to the parent class objects and all derived subclass objects. In formal terms, this is called   polymorphism  .

377.An    entity    is an object , which can be uniquely distinguished from other objects.

378.Remote teleworkers also have the option to have an ISDN line installed to their home or office , linking them to the corporate Intranet via a local   internet service provider(ISP)      .

379. In predicate calculus , each   predicate    is given a name , which is followed by the list of arguments.

380. Virtual functions utilize a table for   address         information.

381.The MAC sublayer defines the Carrier Sense Multiple Access with Collision Detection              protocol , which made Ethernet famous.

382.Pages are viewed with a      browser       .

383. An expert system’s knowledge is obtained from expert   sources and coded in a form suitable for the system to use in its inference or reasoning processes.

384.    Windows managers         manage the devices used to exchange information between applications and users.

385.    Methods   are similar to the functions of procedure-oriented programming.

 The C++ class actually serves as a   template   or pattern for creating objects.

386. The  private  section of a class limits the availability of data or methods to the class itself.

387.  Flash memory    is intermediate between EPROM and EEPROM in bith cost and functionality.

388.   Inheritance  in object-oriented programming allows a class to inherit properties from a class of objects.

389.The   Entity-Relationship model(E-R model)        is based on a perception of a real world which consists of objects called entities and relationships among these objects.

390.Linux is an     operating system         , which acts as a communication service between the hardware and the software of a computer system.

391.   Spooling     provides a pool of jobs which have been read and waiting to be run.

392.    Data management   uses a set of commands to enter , correct , delete , and update data within the database tables.

393. The pattern of the oscillation is called a   waveform   .

394.  Moore  observed that the number of transistors that could be put on a single chip was doubling every year and 27. To reduce design complexity , most networks are organized as a series of layer( levels)   , each one built upon the one below it.

395.correctly predicted that this pace would continue into the near future.

 

396.In each of these statements , there is a list of individuals , which is given by the argument list , together with phrases that describe certain relations among or properties of the individuals mentioned in the argument list.

 

在每个陈述中有一个用变元表给出的个体表，以及描述变元表中那些个体间的关系或性质的一些短语。

397. Another reason commonly given that languages like Lisp, TCL, and Smalltalk are good for prototyping is that they don’t require you to pin down decisions early on------ these languages are semantically rich.

一般认为像Lisp、TCL和Smalltalk这样一些语言十分适合于原型法的另一理由，是因为它们不要求你受早期决定的约束-----这些语言的语义是很丰富的。

398.We have systems which can see well enough to “recognize” objects from photographs , video cameras and other sensors.

现在有些系统的视觉好得足以“识别”照片上、摄象机和其他传感器拍摄得图像上得物体。

399. In the meantime , the lure of a cheaper and easier-to-maintain intranet infrastructure brought about by the use of a relatively standard Web client has many IS managers enthusiastic about using Web browsers.

同时，在通过使用比较报纸的Web客户机而带来的较便宜、较易维护的内部网基础设施的诱惑下，许多信息系统的经理对使用Web浏览器很热情。

400. Work parts are automatically loaded at central locations on to the handling system and are routed to the  proper machine tools.

工作部件被自动地装在处理系统的中心位置，并经由指定路线传送给适当的机床。

401.In each of these statements , there is a list of individuals , which is given by the argument list , together with phrases that describe certain relations among or properties of the individuals mentioned in the argument list.

 

在每个陈述中有一个用变元表给出的个体表，以及描述变元表中那些个体间的关系或性质的一些短语。

402. Even though one can argue that all programs exhibit some degree of intelligence , an AI program will go beyond this in demonstrating a high level of intelligence to a degree that equals or exceeds the intelligence required of a human in performing some task.

即使有人可能争辩说，所有程序都显示出某种程度得智能，但AI程序将超过它，AI程序表现出高的智能等于或超过了人在完成某个任务中所需的智能。

403.Geographic information systems are one of the fastest growing business applications and later this decade may be as common as word processing software and spreadsheet applications.

 

地理信息系统是发展最快的事物应用软件之一，这十年后期它会像字处理软件和电子表格应用软件一样普及。

 

404.Warehouse data is often gathered from sources throughout an enterprise , including different applications , databases , and computer systems , and is likely to be fragmented and inconsistent.

数据仓库数据经常是从整个企业的各种来源收集的，包括不同的应用、数据库与计算机系统等，因而可能是支离破碎和不一致的。

405. To transport a CAD system running in one operating system to another operating system is not as trivial as recompiling the software.

把在一个操作系统上运行的CAD移植到另一个不同的操作系统上，并不像重编译该软件那样简单。

406.All users see the same image; thus, other team members view the scene from an incorrect perspective with the resulting distortion depending upon differences in location within the immersive room.

所有用户看到的是同一个图像；因而，小组其他一些成员从不恰当的视点观察该景象，所产生的失真取决于在沉浸室内位置上的差异。

 

407.A handheld’s constraints（局限性） mean that it’s usually impossible to directly port a desktop application to a wireless handheld device. For the same reasons, it’s difficult to directly access most Web sites with a handheld device. Web applications are traditionally designed based on the assumption that visitors will have a desktop computer with a large screen and a mouse.

手持设备的局限性意味着它通常不能直接把台式应用程序移植到无线手持设备上，出于同样的理由，用手持设备直接访问多数Web站点也很困难。Web应用程序传统上是基于访问者拥有带大屏幕和鼠标的台式计算机这样的假设而设计的。

408.A new concept called the Storage Area Network(SAN)（存储区域网络）could offer an answer to the increasing amount of data that needs to be stored in an enterprise network environment. By implementing a SAN, users can offload storage traffic from daily network operations while establishing a direct connection between storage elements and servers.

对需要在企业网络环境中存储数据量越来越大的问题，一种称之为存储区域网络(SAN)的新概念可能提供了一个答案。通过实现一个SAN，用户可以在存储设备与服务器之间建立直接连接的同时，把存储传输负荷从日常网络操作中分出来。

409. A Storage Area Network（SAN，存储区域网） does not need to be a physically separate network, either. It can be a dedicated sub-network, carrying only the business-critical I/O traffic between servers and storage devices. A SAN, for example, would not carry general-purpose traffic such as e-mail or other end-user applications. This type of net avoids the unacceptable trade-offs inherent in a single network for all applications

SAN不需要在物理上是一个单独的网络。它可以是一个专用的子网，只在服务器与存储设备之间传输关键业务I/O信息。例如，SAN不传送通用意义上的信息，如电子邮件或其它最终用户应用程序。这类网络避免了单一网络中固有的不能接受的拆衷

410. Plug and Play(即插即用)——basically a set of PC architecture specifications---is an effort by hardware and software vendors to design intelligence into PCs to handle installation and configuration tasks automatically and without user intervention.

With a plug-and-play system, users can install devices into or remove them from a desktop or mobile PC; dock and undock desktop PCs from a network; and optimally configure the system for different applications without modifying configuration parameters or expansion-card jumper settings.

即插即用——基本上是一组PC机体系结构的规范，是一种由软硬件厂商将智能设计进PC机的工作，以便自动地和无须用户干预地处置安装与配置任务。

有了即插即用系统，用户就能把设备装进或移出台式或移动式PC机，使台式PC机联网或脱网;以及为不同应用最佳地配置系统而无须修改配置参数或扩展卡的跳线装置等。

411.IPV6——the next-generation networking protocol——promises to change the way corporate networks and the Internet work.IPv6 (also referred to as IPng or ,simply,v6)will eliminate some of IPv4's shortcomings that have appeared as a result of the global Internet explosion.IPv6 is a much-needed improvement, promising easier-to-obtain IP addresses, cheaper and faster routing, and such features as quality of service(QOS, 服务质量) and encryption（加密）.

IPv6——下一代的连网协议，有希望改变公司网络和因特网的工作方式。IPv6也叫做IPng，或简称v6，将消除IPv4因全球因特网爆炸性发展而带来的某些缺点。IPv6是一项非常需要的改进，它许诺更容易获得IP地址，更快更便宜建立路由以及具有较好的服务质量(QOS)和加密等特点。

412. RISC processors, because they are software-programmable, provide the flexibility to adapt to the rapidly evolving data communications market. However, they lack ASIC-level performance because of their generalized(归一化的) architectures. ASICs solve the performance problem but can take 12 to 18 months to develop; require scarce, specialized engineering talent to implement; and have fixed functionality. Modifying an ASIC can cost six to nine months in time-to-market and, even worse, can force forklift upgrades on customers who own equipment based on out-of-date silicon(硅).

RISC处理器由于是可编程的，故提供了灵活性，以适应快速发展的数据通信市场。然而，由于它们采用归一化的体系结构，故缺乏ASIC档次的性能。ASIC解决了性能问题，但要花12至18个月时间来开发，并需要不多见的专门工程人才来具体实现，同时具备固定不变的功能性。修改ASIC可能要以推迟6至9个月产品上市的时间为代价。更有甚者，可能强迫拥有基于过时硅电设备的客户升级。

413. Hand-held devices（手持设备） are more limited than desktop computers in several important ways. Their screens are small——perhaps a few inches square or able to display only a few lines of text-and they’re often monochrome instead of color. Their input capabilities are limited to a few buttons or numbers, or entering data takes extra time, as happens with a personal digital assistant’s (PDA) handwriting-recognition capabilities. They have less processing power and memory to work with, and their wireless network connections have less bandwidth and are slower than those of computers hard-wired to fast LANs.

手持设备在多个重要的方面比台式计算机更受限制。它们的屏幕很小——也许只有几平方英寸或者只能显示几行文本信息，它们常常是单色的而不是彩色的。它们的输入功能局限于几个按键或数字键，或者像个人数字助理(PDA)手写体识别功能那样，输入数据要花很长时间，它们所拥有的工作处理能力和内存都较小。比起那些通过计算机硬连线与快速局域网相连的连接，它们的无线网络连接带宽较窄，速度也较慢。

414. Digital subscriber line technology comes in a bewildering variety of flavors, but they all have one thing in common——they use various modulation techniques to turn those plodding "last mile" loops of copper between the customer premises and the telco's(电信公司) central office into high-speed data and voice carriers. Most of the focus has been on ADSL(asymmetric digital subscriber line),which delivers rates of 32 Kbps to 8.192 Mbps downstream, and 32 Kbps to 1.088 Mbps upstream to the network, while providing phone service at the same time on the same line.

数字用户环路(DSL)技术有几种令人疑惑的不同变种，但它们都有一样公共的东西——它们用不同的调制技术，把用户房屋和电话公司的中心局之间低速的"最后一英里"铜线回路变成高速的数据和话音的载体。(人们)注意力多数集中在ADSL(不对称数字用户环路)上，它给出32K至8.192Mbps的下行速度和32K至1.088Mbps的上行速度，同时在同一线路上提供电话服务。

415. But even without a new OS, these features can be utilized. Leveraging Windows' driver model, specialty vendors will offer drivers that can fully exploit these integrated features. Thus providing dramatically improved——or arguably, finally usable-video and speech capabilities. Of course, this Pentium-Windows chasm provides an opportunity for other operating system vendors such as Red Hat and Be Inc. That is assuming that they can react like the Microsoft of old.

但即使没有新的OS，也能利用这些特性。通过利用Windows的驱动程序模型，专业公司将提供全面利用这些内在特性的驱动程序，从而提供戏剧性改进了的——或者还有争议，但最终能使用的视频与语音功能。当然，这场Pentium-Windows的角逐为其它的操作系统公司，如Red Hat公司和Be公司提供了机会。这是假设他们能像过去的微软公司那样工作。

416. Given the relative quickness of software development, one would think that software solutions would lead the computing agenda for many years. But as software delays have become more profound and commonplace, hardware-featured solutions are beginning to offer better solutions than their software counterparts. And given the improving capabilities of hardware development, hardware vendors will become the clear leader in this race.

在假设软件开发较快的情况下，人们会认为软件方案将在计算领域独领风骚许多年，但随着软件开发的延迟变得更严重、更常见，以硬件为特色的方案开始优于同类软件方案。在硬件开发能力得到改进的情况下，硬件厂家将在这场竞赛中明显领先。

 

417. Linux是不是像Windows那样太大以及需要系统资源太多，以致于不能满足嵌入式系统的约束要求呢？与Windows不同，Linux本来就是模块化的，并且能够很容易缩减成紧缩配置，这种配置几乎与DOS差不多大，甚至能放到一张软盘上。此外，因为Linux源码是免费可用的，所以可以按照独特的嵌入式系统要求改编该操作系统。

这样，并不令人惊奇，开放源代码Linux已经建立了一个新的操作系统开发和支持范例，在那里数以千计的开发人员继续贡献于不断发展的Linux代码库。此外，几十家面向Linux的软件公司已经出现----它们热切支持那些为建立从工厂自动化到智能设备范围很广的应用系统的开发人员的需求。

Is Linux , like Windows , too large and demanding of system resources to fit the constraints of embedded system? Unlike Windows , Linux is inherently modular and can be easily scaled into compact configurations ,barely larger than DOS ,that can even fit on a single floppy. What’s more, since Linux source code id freely available, it’s possible to customize the OS according to unique embedded system requirements.

It’s not surprising, then, that open source Linux has created a new OS development and support paradigm wherein thousands of developers continually contribute to a constantly evolving Linux code base. In addition, dozens of Linux-oriented software companies have sprung up eager to support the needs of developers building a wide range of applications, ranging from factory to intelligent appliances.

418. 对许多嵌入式系统，为了适应诸如RAM、固态盘、处理机速度，以及功耗的约束，嵌入的Linux的主要任务是，使系统所需的资源最小。嵌入式操作可能需要从一个芯片盘或紧凑闪存固态盘上自举；或者自举和运行在没有显示器和键盘的环境，或经由以太网连接，从远程设备装入应用程序。

现成的小Linux有许多来源，其中有日益增多的面向应用的Linux配置和分发版，这些都被修改成适用于特定的应用。例如路由器、防火墙、互联网/网络设备、网络服务器、网关等。

你也可选择建立你自己喜欢的嵌入式Linux，从一个标准分发版开始，略去不要的模块。虽然如此，还应该考虑从别人的工作配置基础上开始你的工作，因为他们的版本的源码可用于那个目的。最好的是，这种在别人努力的成果上建立系统，在Linux团体中不仅是完全合法的，也被鼓励。

For many embedded systems , the main challenge in embedding Linux is to minimize system resource requirements in order to fit within constraints such as ,RAM solid state disk(SSD), processor speed, and power consumption . Embedded operation may require booting from a DiskOnChip or CompactFlash SSD ; or booting and running without a display and keyboard ; or loading the application from a remote device via an Ethernet LAN connection.

There are many resources of ready-made small foot-print Linux. Included among these are a growing number of application-oriented Linux configurations and distributions that are tuned to specific applications. Some examples are routers, firewalls ,internet/network appliances ,network servers ,gateways ,etc.

You may also opt to create your own flavor of embedded Linux ,starting from a standard distribution and leaving out modules you don’t need. Even so ,you should consider jump-starting your efforts by beginning with someone else’s working configuration ,since the source code of their version will be available for that purpose . Best of all ,this sort of building on the efforts of others in the Linux community is not only completely legal but also encouraged!

419.一个长期目标可以是开发交互式程序变换系统，它帮助程序员把程序并行化并提供反馈和指导。这种想法的问题是半自动化程序变换实现办法仍然是现行研究的对象，甚至对于顺序程序也是。在中期内，导出实际的并行程序的、产品质量变换程序未必可能出现。传统的方法是讲授一些算法，然后用具有明显并行性的程序设计语言明确地表达它们。这很可能是更成功的，特别是因为已知的一些并行算法的主要部分很大，并且在迅速地增长。初步迹象表明，倘若语言与支持工具充分的话，书写并行软件不比书写顺序软件显著地更困难。

A long tem goal could be to develop interactive program transformation systems that assist programmers in parallelizing programs and provide feedback and guidance. The problem with this idea is that the approach of semiautomatic program transformations is still an object of active research, even for sequential programs. In the medium terms, a production-quality transformer for deriving realistic, parallel programs is unlikely to appear. The traditional method of teaching algorithms is likely to be more successful, especially since the body of known parallel algorithms is large and growing rapidly. Initial indications seem to be that writing parallel software is not significantly harder than writing sequential software, provided the languages and support tools are adequate.

 

第三部分

单选

420.A computer system has input, output, (storage) and processing components.

421.how data are represented inside a computer system in electronic states called (bits )

422.Which is magnetic secondary storage devices?( tape )

423. To facilitate an even faster transfer of instructions and data to the processor, most computers are designed with (Cache memory)

424. A computer having the hardware and software necessary for it to be connected to a network. The sentence describes (Network Computer)

425. With optimal laser disk technology, the read/write head used in magnetic storage is replaced by (two) lasers

426. An (SISD) computer carries out one instruction on one datum at a time

427. He told me all (As a result ), he will have to be away from school for two or three months.

428. Would you mind (filling) this form?

429. One of the methods (adopted ) is to organize visits to other factories.

430. The house (standing ) at the corner of the street was built in 1984.

431. A multiprocessor system has (more than one CPU )

432. To prevent user programs from interfering with the proper operation of the system, the hardware was modified to create two models: (User mode and monitor mode )

433. A collection of interconnected networks is called an (internet )

434. Which description is false? (The beauty of an Intranet lies in platform dependence)

435. In computer networks, the rules and conventions used in the conversation are known as (protocol )

436. The data models don’t include (control unit models )

437. Objected-based logic models are used for (describing data at the conceptual and view levels )

438. Polymorphism gives objects the ability to respond to messages from routines when the object’s exact type isn’t known. In C++ this ability is a result of (late binding )

439. What you said reminds me (of ) something I read a few days ago.

440. The smog is due to invisible gases, mostly from automobile exhaust.

441. Edison failed (thousands of ) times before he succeeded in producing the first electric lamp.

442.The “intelligence” of a computer system is (processor )

443. Which is a magnetic secondary storage device? (disk  )

444. All programs and data must be transferred to (primary storage ) from an input device or from secondary storage before programs can be executed or data can be processed

445. Three main categories of optical laser disks don’t include (primary storage )

446. An (MISD ) computer would apply several instructions to each datum it fetches form memory

447. Which description is false? (We can’t view an OS as a resource allocator )

448. (parallel OS ) is tightly coupled

449. The steps that occur between the user’s click and the page being displayed don’t include (the TCP connection isn’t released )

450. The ISO/OSI mode has (seven ) layers

451. Which description is true? (It’s not necessary that different views should contain different data )

452.Physical data models are used for (describing data at the lowest level )

453. (Multimedia) is encoded at least through a continuous and a discrete medium

454. (Expert system) is s set of programs that manipulate encoded knowledge to solve problems in a specialized domain that normally requires human expertise

455. The waveform repeats the same shape at regular intervals and this portion is called a (period)

456. Processor has only two fundamental sections (the control unit and the arithmetic and logic unit)

457. The kids are (bound to) be hungry when they get home—they always are.

458. All the characteristics that distinguish birds (from) other animals can be traced to prehistoric times.

459. A computer system has (input ), output, storage, and processing components.

460. Processor has only two fundamental sections (the control unit and the arithmetic and logic unit )

461. A program instruction or a piece of data is stored in a specific primary storage location called an (address )

462. A multiprocessor system has (more than one CPU )

463. Input devices don’t include (video displays )

464. (the World Wide Web ) is an architectural framework for accessing linked documents spread out over thousands of machines all over the Internet

465. An (Intranet ) is simply the application of Internet technology within an internal or closed usergroup

466. All Intranet related documents are written in (HTML )

467. A small piece of code that can be transported over the Internet and executed on the recipient’s machine. The sentence describes (applet )

468.He had a large (number) of facts to prove his statements.
469. Scientists will have to come up (with ) new methods of increasing the world’s food supply. 
470. It is impossible to solve (so difficult problem  ) in such a short time.
471.The decision (having been making ), the next problem was how to make a good plan.

472.( It is not yet known ) whether robots will one day have vision as good as human

473. (database management system ) allows one or many persons to use and/or modify this data

474. A data model is a collection of conceptual tool for describing (data, data relationship, data semantics, data constraints )

475. record-based logic models don’t include (Physical data model )\

476. Which description is false? (delta frames don’t record the interframe changes )

477. How data are represented inside a computer system in electronic states called (.bits )

478. Which is magnetic secondary storage devices?( .tape )

479. How many basic units do today's digital computers consist of? ( 4 )

480.A bus that provides a path for moving data between system modules is called ( data bus  )

481. External devices are linked to a small computer system through (interfaces ).

482.CPU has only two fundamental sections: the arithmetic and logic unit and (the control unit ).

483. A display screen is divided into a grid of  (pixels   ).

484. arithmetic and logic unit executes instructions

485. The way each object combines its member data and member functions into a single structure is called (Encapsulation   )

486.Another name for primary storage is (RAM  )

487. The basic output device on a small computer is a (display screen  ).

488.The Open Systems Interconnection (OSI)reference model is based on a proposal developed by ( ISO  )

489. The computer component that actually manipulates the data is  (the processor  ).

490. The physical components of a computer are collectively called   (hardware  ).

491. Each cell of a worksheet can hold   (one piece of data   ).

492. The part of an instruction that tells the processor what to do is the (operand  ).

493. A Web browser is a piece of  (software  ).

494.The permanently useful data is stored in (  the ROM )

495. A bus that connects major computer components is called (system bus  )

496. All functions in spreadsheets start with  (an equal sign  ).

497. An E-mail server can be considered as a (powerful operating system   )

498. Programs are known collectively as (software   ).

499. The interference that distorts electronic signals transmitted over a distance is called (noise   ).

500. A computer processes information into ( data  ).

501. Memory’s contents are changed when it is (written  ).

502. A location in memory is accessed by its (address  ).

503. A small piece of code that can be transported over the Internet and executed on the recipient’s machine. The sentence describes (applet  )

504. To prevent user programs from interfering with the proper operation of the system, the hardware was modified to create two models: (User mode and monitor mode   )

505. A protocol is a set of (regulations  ).

506. HTML stand for(Hypertext Markup Language  )

507. A computer system has input, output, storage, and (CPU  ).

508. All Intranet related documents are written in ( HTML  )

509. The software which acts as an interface between a user of a computer and the computer hardware is (operating system  )

510. WWW stand for World Wide Web

511. The processor fetches and executes (instructions   ).

512. Programmers write (  source code ).

513. Primary storage  provides the CPU with temporary storage for programs and data

514. hard disk is a magnetic secondary storage device

515. Data and program instructions are stored in (memory  ).

516. The “brain” of a computer system is (CPU  )

517. A program instruction or a piece of data is stored in a specific primary storage location called an (address  )

518. The ISO/OSI mode has (seven  ) layers

519. A collection of interconnected networks is called an (Internet  )

520. The source of a computer’s logic is (software  ).

521. A computer system has four parts, they are output, storage, processing components and (input  )

522. The WWW is based on client-server model standards

523. A multiprocessor system has (more than one CPU  )

524. The Central Processor has only two fundamental sections (the control unit and the arithmetic and logic unit )

525. Once a user starts an IRC client, the server on the IRC service provider side will provide the user a (channel ).

526. A data model is a collection of conceptual tool for describing (data, data relationship, data semantics, data constraints  )

527. External devices are linked to a small computer system through (control units ).

528. The waveform repeats the same shape at regular intervals and this portion is called a (period  )

529. how data are represented inside a computer system in electronic states called (bits )

530. How many layers does the ISO/OSI mode have? (seven )

531. External devices are linked to a small computer system through (interfaces ).

532.CPU has only two fundamental sections: the arithmetic and logic unit and (the control unit ).

533. Objected-based logic models are used for (  describing data at the conceptual and view levels   )

534. arithmetic and logic unit executes instructions

535. Which is an simply the application of internet technology within an internal or closed group?(   intranet   )

536． CD-ROM belongs to (optical laser disk )

537. A collection of conceptual tools for describing data, data relationships, data semantics and data constraints is a (data model )

538.The Open Systems Interconnection (OSI)reference model is based on a proposal developed by ( ISO  )

539. The software that allows one or many persons to use and/or modify this data is a (DBMS )

540. The physical components of a computer are collectively called   (hardware  ).

541. The most popular processor interconnection topology is the (hypercube ).

542. The part of an instruction that tells the processor what to do is the (operand  ).

543. The part of an instruction that tells the processor what to do is the (operation code ).

544.The permanently useful data is stored in (  the ROM )

545. The interference that distorts electronic signals transmitted over a distance is called (noise ).

546. All functions in spreadsheets start with  (an equal sign  ).

547. An E-mail server can be considered as a (powerful operating system   )

548. A programming technique that allows you to view concepts as a variety of objects is called (object oriented programming )

549. The interference that distorts electronic signals transmitted over a distance is called (noise   ).

550. A program instruction or a piece of data is stored in a specific primary storage location called an (address )

551. A bus that is used to control the access to and the use of the data and address bus is called (control bus)

552. A location in memory is accessed by its (address  ).

553. A small piece of code that can be transported over the Internet and executed on the recipient’s machine. The sentence describes (applet  )

554. An E-mail server can be considered as a (high-configuration computer ) .

555. A protocol is a set of (regulations  ).

556. Which networks usually span tens of kilometers?( Metropolitan area  )

557. A computer system has input, output, storage, and (CPU  ).

558. All Intranet related documents are written in ( HTML  )

559. The WWW is based on which of the following standards? (client-server model )

560. WWW stand for World Wide Web

561. All functions in spreadsheets start with  (an equal sign ).

562. Programmers write (  source code ).

563. Primary storage  provides the CPU with temporary storage for programs and data

564. When a CPU needs the data to operate, it goes where first? (the cache ).

565. When hypertext pages are mixed with other media, the result is called(hypermedia )

566. The “brain” of a computer system is (CPU  )

567. A program instruction or a piece of data is stored in a specific primary storage location called an (address  )

568. The ISO/OSI mode has (seven  ) layers

569. What does a worksheet mean? (a working area framed by letters and numbers  )

570. Before typing in any data, a user needs to (select the cell).

571. A computer system has four parts, they are output, storage, processing components and (input  )

572. Another name for primary storage is (RAM ).

573. The Open Systems Interconnection (OSI) reference model is based on a proposal developed by (ISO ).

574. The basic output device on a small computer is a (display screen  ).

575. To prevent user programs from interfering with the proper operation of the system, the hardware was modified to create two models: (User mode and monitor mode )

576. A data model is a collection of conceptual tool for describing (data, data relationship, data semantics, data constraints  )

577. What kind of computer would apply several instructions to each datum it fetches form memory? (MISD )

578. What is a computer program? (a set of instructions )

579．A communication pathway connecting two or more devices is a (channel )

580. How many basic units do today's digital computers consist of? ( 4 )

581. LCD is based on  TFT

582. Optical laser disk includes CD-ROM, magneto-optical disk and (WORM disk )

583. A special type of primary storage which cannot be altered by the programmer is called (ROM )

584.  A list of protocols used by a certain system , one protocol per layer, is called a (protocol stack )

585. The realization of the mobile internet relies on a new set of standards ,known as the (WAP )

586. What does A worksheet mean? (an EXCEL program )

587. How many different types of Entity relationships are there?(   4   )

588. What kind of computer would apply one instructions to each datum it fetches form memory? (SISD )

589．Cache memory is employed by computer designers to increase computer system (throughput )

590. The Central Processor has only two fundamental sections (the control unit and the arithmetic and logic unit)

591. The Open Systems Interconnection (OSI) reference model is based on a proposal developed by (ISO ).

592. The basic output device on a small computer is a (display screen  ).

593. How many parts are there in URL? (3  )

594. All Intranet related documents are written in (HTML  )

595. A computer system has five parts, they are input, output, processing components , control unit and (storage ).

596. What does HTTP stand for? (Hypertext Transfer Protocol )

597．How many record-based logical models are widely used ?(  3  )

598. A protocol is a set of (regulations  ).

599. What is a set of programs that manipulate encoded knowledge to solve problems in a specialized domain that 81.normally requires human expertise? (Expert system )

600. LCD is based on which of the following? (TFT )

601. How many layers does the TCP/IP layering model have? (5 )

602. Another name for primary storage is (RAM ).

603. How many basic operating system types are there? (3 ).

604.Which one can be rewritten? (U-DISK )

605.If an object inherits its attributes from a single parent, it is called(single inheritance )

606. The “brain” of a computer system is (CPU  )

607. How many classes are the data models divided into?(   3   )

608. What does the WWW stand for? (World Wide Web )

609. A computer system has five parts, they are input, output, storage, control unit and (processing components  ).

610.The way each object combines its member data and member functions into a single structure is called (Encapsulation )

611. The standard query language of relational database is (SQL   )

612. Creating the database and its table structure uses (  data definition  )

613. Normally, how long does a user need to wait until his/her E-mail account is ready if he/she applies for it from an ISP ? (no time )

614. A bus that is used to designate the source or destination of the data on the data bus is called (  address bus )

615. Output devices don’t include (scanner )

616.What does IC stand for? (Intelligent Circuit )

617.The software which acts as an interface between a user of a computer and the computer hardware is (operating system )

618.The protocol which downloads files free of charge from thousands of computers around the globe is (FTP protocol )

619. Output devices don’t include (mouse )

620. Data and program instructions are stored in (memory ).

 

621.

英文拼写的中文意思

标记、标号                   label

术语，项                     term

磁盘冗余阵列                 RAID

以太网                      Ethernet

编码                        encode

音频                        audio

客户/服务器                  client/server

指针                        pointer

高速缓存                     cache

位（或二进制位）             bit

常量                        constant

可擦写可编程只读存储器        EPROM

带宽                        bandwidth

控制杆(操纵杆)               joystick

广域网                      WAN

桌面（台式机）               desktop

接口、界面                   interface

可重用的                     reusable

文档                        document

错误、故障                   bug

光驱                        CD－ROM

像素                        pixel

网格、格栅                   grid

远程的、遥远的               remote

定时器                      timer

变量                        variable

菜单、选单                   menu

电子邮件                     E-mail

鼠标                        Mouse

光标                        cursor

超文本传输协议               HTTP  

ROM                         read-only memory

VDT                         Video Display Terminal

DOS                         Disk operating system

WAN                         Wide Area Network

LAN                         Local Area Network

IP                          Internet Protocol

ISDN                        Integrated Services Digital Network

MMX                         Multimedia Extensions

DNS                         Domain Name System

FTP                         File Transfer Protocol

NC                          Network Computer

CGA                         color/graphics adpter

GUIs                        Graphic User Interfaces

ISP                         Internet Service Provider

DVD                         Digital Video Disk

WWW                         World Wide Web

CPU                         Central Processing Unit

中文、英文拼写形式

622.class hierarchy类层次

623.XML可扩展标记语言

624.Intranet内部网

625.data bus数据总线

626.Operating system操作系统

627.CAD计算机辅助设计

628.Neural Networks  神经网络

629.ODBC开放数据库连接                 

630.ISP因特网服务提供商

631.Expert System专家系统

632.Web site网站站点

633.WAN广域网

634.network communication网络通信

635.FTP文件传输协议

636.system bus系统总线

637.primary memory主存

638.ROM只读存储器

639.object-oriented programming面向对象编程

640.virtual reality虚拟现实

641.主存    (Main memory   )

642.调制解调器                            (modem   )

643.可编程只读存储器    (PROM   )

644.数据库管理系(  DBMS  )

645.客户端/服务器 (Client/Server   )

646.多媒体  (Multimedia   )

647.虚函数  (virtual function   )

648.超文本标记语言      (  HTML  )

649.小型计算机系统接口  (SCSI   )

650.计算机辅助软件工程                     (CASE   )

651.HTML 超文本标记语言

652.Hard disk硬盘

653.database数据库

654.RAM随机存储器

655.工具条                             (  toolbar  )

656.统一资源定位符                      ( URL   )

657.统一资源标识符                        ( URI   )

658.人工智能      (  Artificial Intelligence  )

659.计算机  (Computer   )

660.面向对象      (Object Oriented   )

661.图形用户接口  (Graphical user interface   )

662.中央处理器                              ( CPU   )

663.计算机网络    (  computer network  

664.国际互联网    (   Internet )

665.计算机辅助制造                             (  CAM  )

666.软件工程      (software engineering)

667.视频压缩      (video compression   )

668.算术逻辑部件                               ( ALU   )

669.计算机应用    (computer application   )

670.电子商务      (Electronic Business   )

671.虚拟现实      (virtual reality   )

672.软盘驱动器    (  FDD  )

673.图形用户接口(Graphical user interface   )

674.应用编程接口  (API   )

675.视频点播VOD

676.搜索引擎      (search engine   )

677.传输控制协议/互联网协议   (  TCP/IP  )

678.万维网                                                ( WWW   )

679.地理信息系统                                           ( GIS   )

680.封装                                            (  encapsulation  )

681.只读存储器                                (  ROM  )

682.系统软件      (  system software  )

683.磁盘操作系统                                           (DOS    )

684.结构化查询语言                                         (  SQL  )

685.虚拟专用网                              ( VPN   )

686.开放式系统互联                           ( OSI   )

687.个人数字助理  (PDA   )

688.可移植性      (transportability    )

689.带宽    (bandwidth   )

690.集成电路      (integrated circuit   )

691.结构化编程    (Structured programming   )

692.复杂指令集计算机    (   CISC )

693.短信消息服务  (  SMS  )

694. topology analysis拓扑分析

695.ADO    ActiveX数据对象

696. multiprogramming                 多道程序设计

697. ODBC 开放数据库互连

698.VR           虚拟现实

699.cache memory      高速缓冲存储器

700.FTP文件传输协议

701.system bus系统总线

702. GUI   图形用户界面

703.ROM只读存储器

704.object-oriented programming面向对象编程

705.virtual reality虚拟现实

706.主存    (Main memory   )

707.调制解调器                            (modem   )

708.可编程只读存储器    (PROM   )

709. off-line operation                  脱机操作

710.客户端/服务器 (Client/Server   )

711.多媒体  (Multimedia   )

712.虚函数  (virtual function   )

713. neural network         神经网络

714.VDT               视频显示终端

715.EDI          电子数据交换

716.CAM          计算机辅助制造

717. RDBMS       关系型数据库管理系统

718.database数据库

719.RAM随机存储器

720.工具条                             (  toolbar  )

721.统一资源定位符                      ( URL   )

722.统一资源标识符                        ( URI   )

723.人工智能( Artificial Intelligence  )

724. KDD         数据库中的知识发现

725.面向对象      (Object Oriented   )

726.图形用户接口  (Graphical user interface   )

727.中央处理器                              ( CPU   )

728.计算机网络    (  computer network  

729.国际互联网    (   Internet )

730.计算机辅助制造                             (  CAM  )

731.软件工程      (software engineering)

732.视频压缩      (video compression   )

733.算术逻辑部件                               ( ALU   )

734.计算机应用(computer plication )

735.电子商务(Electronic Business )

736.虚拟现实      (virtual reality   )

737. EJB         企业Java Beans

738.图形用户接口(Graphical user interface   )

739.应用编程接口  (API   )

740.视频点播VOD

741. memory stick      记忆棒

742.传输控制协议/互联网协议   (  TCP/IP  )

743.万维网( WWW   )

744.地理信息系统( GIS   )

745. RAP 快速应用程序原型技术

746.只读存储器                                (  ROM  )

747.系统软件(  system software  )

748.磁盘操作系统                                           (DOS    )

749.结构化查询语言                                         (  SQL  )

750.虚拟专用网                              ( VPN   )

751.开放式系统互联                           ( OSI   )

752.个人数字助理  (PDA   )

753. VLSI  超大规模集成电路

754.带宽    (bandwidth )

755.集成电路(integratedcircuit   )

756.结构化编程(Structured programming )

757.复杂指令集计算机    (   CISC )

758.短信消息服务  (  SMS  )

759.PCI 外围设备互连   

760. real time operating system   实时操作系统

761.OODBMS             面向对象的数据库管理系统

762.abstract data type      抽象数据类型

763.CPU:中央处理器

764.modem:调制解调器

765.SIMD:单指令流多数据流

766.sort:排序,分类

767.class:类

768.desktop:桌面

769.DVD:数字视盘

770.font:字体

771.processor:处理机

772.bit:位,二进制位

773.cache:高速缓存

774.mouse:鼠标

775.SISD:单指令流单数据流

776.pixel:像素

777.bitmap:位图

778.keyboard:键盘

779.input:输入

780.document:文档

781.E-mail:电子邮件

782.instruction:指令

783.output:输出

784.FTP:文件传输协议

785.MIMD:多指令流多数据流

786.capacity:容量

787.throughput:吞吐量

788.Ethernet:以太网

789.disk:硬盘

790.field:域

791.item:条目

792.virtual function:虚拟函数

793.pointer:指针

794.cursor:光标

795.icon:图标

796.package:包

797.boot:引导,自举

798.TCP/IP:传输控制协议/互联网协议

799.DNS:域名服务

800.HTTP:超文本传输协议

801.URL:统一资源定位器

802.键盘 :keyboard

803.只读存储器:ROM

804.电子邮件:E-Mail

805.文件:file

806.光驱:CD-ROM

807.互联网:Internet

808.多媒体:multimedia

809.指令:instruction

810.随机存取存储器:RAM

811.芯片:chip

812.人工智能:artificial intelligence

813.下载:download

814.防火墙:firewall

815.机器人robot

816.万维网WWW

817.集线器hub

818.数据data

819.程序program

820.协议protocol

821.操作系统operating system

822.网络计算机network computer

823.专家系统expert system

824.中央处理机CPU

825.调制解调器modem

826.超文本传输协议HTTP

827.(企业)内部网intranet

828.数据库管理系统DBMS

829.主关键字key

830.工作站workstation

判断题

831.CD-R recorders are used to duplicate CDs(  T  )

832.The system clock is the brain of a computer. (  F  )

833. memory is much faster than RAM. (   T )

834.Internet resources are stored on Web servers. (  T  )

835.Windows 2000 is the first Windows operating system in a real sense.(  F  )

836.We can view an operating system as a resource manager. (   T )

837.You can connect 255 devices to a computer by USB. (   F )

838.The single-sided DVD can store 6.5GB of data. (  F  )

839.Keyboard and mouse are both the input devices of the computer. (  T  )

840.Cache memory is more expensive than RAM.(   T )

841.Both the user names and the passwords must be unique for E-mail accounts.( F   )

842.ALU is one of the components of CPU.(  T  )

843.JAVA is a Object-Oriented programming language.(  T  )

844.You can connect 120 devices to a computer by USB. (   T)

845.PROM is the abbreviation of portable read –only memory. (  F  )

846.Buffering is an approach to improving system performance. (T    )

847.Microsoft Windows 2000 is an operating system of the computer. ( T   )

848.PCI is a popular low-bandwidth bus. ( F   )

849.Printer is the input device of the computer. (  F  )

850.The system clock sends out pulses regularly. ( T   )

851.FTP is a protocol of the computer network. (  T  )

852.HTTP stands for High Transportation Port. ( F   )

853.A cache runs as fast as a RAM. (  F  )

854.CPU has only one fundamental section: the control unit. (  F  )

855.Hard disks and floppies operate in different ways. ( F   )

856.Cache memory is much faster than RAM. ( T   )

857.VDT stands for video display terminal. (  T  )

858.System bus provides a path for moving data between system modules. ( F   )

859.CD-ROM stands for compact disk read-only memory. (  T  )

860.The single-sided DVD can store 6.5GB of data. (  F  )

861.Buffering is an approach to improving system performance. ( T   )

862.WWW stands for World Wide Web. (   T )

863.There 3 main categories of optical laser disks: CD-ROM, DVD and VCD. (  F  )

864.You can connect 255 devices to a computer by USB. (  F  )

865.JAVA is a Object-Oriented programming language. ( T   )

866.An OS is the software which acts as an interface between a user and a computer. ( T   )

867.Buffering is an approach to improving system performance. (  T  )

868.Microsoft SQL server 2000 is an operating system of the computer. ( F  )

869.Microsoft Office 2003 is operating system software. ( F   )

870.FTP is a protocol of the computer network. ( T   )

871.The Web browser is used to display the data stored on the Internet. (  T  )

872.PCI is a popular low-bandwidth bus. (F    )

873.A buffer's capacity is low and price is high, and it runs as fast as a RAM. ( F   )

874.Primary storage provides CPU with temporary storage for programs and data. (T)

875.The wide of the bus is also called the "word length". (  T  )

876.The single-sided DVD can store 6.5GB of data. (  F  )

877.A CPU includes the ALU and the controller. (   T )

878.MS-DOS refers to Microsoft Disk Operating System. (  T  )

879.CD-R recorders are used to duplicate CDs (  T  )

880.You can connect 255 devices to a computer by USB. (  F  )

881.Cache memory is much faster than RAM. ( T   )

882.Printer is the I/O device of the computer. ( T   )

883.DVD provides CPU with temporary storage for programs and data. (F    )

884.JAVA is a structured programming language. (  F  )

885.C is an Object-Oriented programming language. ( F   )

886.Internet resources are stored on Web servers. (  T  )

887.You can connect 127 devices to a computer by USB. (  T  )

888.MS Office 2000 is the first Windows operating system in a real sense. ( F   )

889.We can view an operating system as a output hardware. (   T )

890.PDA is one of the components of CPU. ( F   )

891.The single-sided DVD can store 6.5GB of data. (F    )

892.Keyboard and mouse are both the input devices of the computer. ( T   )

893.Cache memory is less expensive than RAM.(   F )

894.The user name must be unique for E-mail accounts. (  T  )                                                 

895.ALU is one of the components of CPU. ( T   )

896.Keyboard and mouse are both the input devices of the computer. ( T   )

897.PCI is a popular low-bandwidth bus. (  F  )

898.The single-sided DVD can store 6.5GB of data. (  F  )

899.You can connect 255 devices to a computer by USB. (  F  )

900.We can view an OS as a resource manager. (  T  )

901.Windows 95 is the first Windows operating system in a real sense. ( T   )

902.CD-R recorders can be used to duplicate CDs(  T  )

903.Microsoft Office 2003 is an operating system software. (  F  )

904.WWW stands for World Wide Web. (  T  )

905.Buffering is an approach to improving system performance. ( T   )

906.PROM is the abbreviation of portable read –only memory. ( T   )

907.ROM is the abbreviation of read of memory. ( F   )

908.Hard disk provides CPU with temporary storage for programs and data. (F    )

909.MS-DOS is a Object-Oriented programming language. ( F   )

910.OS is the software which acts as an interface between a user and a computer. ( T   )

911.MS Windows 2000 is a hardware component of computer. (  F  )

912.FTP is not a protocol of the computer network. ( F   )

913.C++ language is a structured programming language. (  F  )

914.Linux is an operating system. (  T  )

915.To format a floppy means that magnetic areas are created. (  T  )

916.A scanner belongs to the output device. ( F   )

917.URL is used to locate Internet resources. (   T )

918.E-mail is a method of sending and receiving messages on the Internet. (   F )

919.HTML is used to write Web pages.(   T)

920.CD-Rrecorders are used to duplicate CD(  T  )

921.XML is used to write Web pages.(  F  )

922.The CPU is the brain of a computer( T   )

923.Cache memory is as fast as RAM. ( T   )

924.C++ language is a structured programming language.(  F  )

925.Linux is an operating system. (  T  )

926.HTTP is used to locate Internet resources. (   F )

927.PCI is abbreviation of peripheral component interconnect.(  T  )

928.A U-disk belongs to the output device.(  T  )

929.E-mail is a method of sending and receiving messages on the Internet.                           (  F  )

填空

930.A collection that stores objects of the same data type is referred to as a  homogeneous         collection.

931.A    virus scanner           is a program that is designed to check an entire computer system for known viruses or suspicious activity.

932.A stack  is a list of items that are accessible at only one end of the list.

933.    Electronic Business         is the integration of IT and particularly the Internet into business processes to change organizations and create new ones.

934.Cache memory is employed by computer designers to increase the computer system   throughput     .

935.Frequency division multiplexing (FDM)     is the technical term applied to a network system that uses multiple carrier frequencies to allow independent signals to travel through a medium.

936.The    Unified Modeling Language(UML)          is a graphical language for visualizing , specifying , constructing , and documenting the artifacts of a software-intensive system.

937.Data query    uses a set of commands to explore the database contents and allows the user to convert the raw data into useful information.

938.Another important object-oriented concept that relates to the class hierarchy is that common messages can be sent to the parent class objects and all derived subclass objects. In formal terms, this is called   polymorphism  .

939.An    entity    is an object , which can be uniquely distinguished from other objects.

940. In predicate calculus , each   predicate    is given a name , which is followed by the list of arguments.

941. Virtual functions utilize a table for   address         information.

942.The MAC sublayer defines the Carrier Sense Multiple Access with Collision Detection              protocol , which made Ethernet famous.

943.Pages are viewed with a      browser       .

944. An expert system’s knowledge is obtained from expert   sources and coded in a form suitable for the system to use in its inference or reasoning processes.

945.    Windows managers         manage the devices used to exchange information between applications and users.

946.    Methods   are similar to the functions of procedure-oriented programming.

947.The C++ class actually serves as a   template   or pattern for creating objects.

948. The  private  section of a class limits the availability of data or methods to the class itself.

949.  Flash memory    is intermediate between EPROM and EEPROM in bith cost and functionality.

950.   Inheritance  in object-oriented programming allows a class to inherit properties from a class of objects.

951.The   Entity-Relationship model(E-R model)        is based on a perception of a real world which consists of objects called entities and relationships among these objects.

952.Linux is an     operating system         , which acts as a communication service between the hardware and the software of a computer system.

953.   Spooling     provides a pool of jobs which have been read and waiting to be run.

954.    Data management   uses a set of commands to enter , correct , delete , and update data within the database tables.

955. The pattern of the oscillation is called a   waveform   .

956.  Moore  observed that the number of transistors that could be put on a single chip was doubling every year and

957. To reduce design complexity , most networks are organized as a series of layer( levels)   , each one built upon the one below it.

958.correctly predicted that this pace would continue into the near future.

(Window managers ) It manage the devices used to exchange information between applications  and users

959.Thread is sometimes called lightweight process.

960.The operating system acts as the  manager   of system resources and allocates them to specific programs and users as necessary for their tasks.

961.   Hubs   can be categorized as either CSMA/CD or full-duplex  repeaters.

962.Remote teleworkers also have the option to have an ISDN line installed to their home or office , linking them to the corporate Intranet via a local   internet service provider(ISP)      .

963.( DBMS ) The software that allows one or many persons to use and/or modify this data

964.( insert ) To ass text or data to a file while editing

965.( Network computer ) A computer having the hardware and software necessary for it to be  connected to a network

966.( E-Mail ) Let you send messages to Russia, Japan and so on

967. ( Gateway ) A device that connect networks using different communications protocols so that information can be passed from one to the other

968.( multimedia ) Combination of media

969.( hub ) In a network, a device joining communication lines at a central location , providing a common connection to all devices on the network.

970.In computer networks , pages that point to other pages are said to us ( hypertext )

971.All Intranet related documents are written in ( HTML )

972.( Interframe ) compression uses a system of key and delta frames to eliminate redundant information between frames

973.A computer system has input , output ,( storage ) and processing component

974.C++’s advantages include strong typing,( Operator overloading  ), and less emphasis on the preprocessor

975.When hypertext pages are mixed with other media , the result is called ( hypermedia )

976.the ( processor ) is “intelligence” of a computer system

977.( multimedia ) means from the user’s perspective, that computer information can be represented through audio and/or video, in addition to text, image, graphics and animation

978.When hypertext pages are mixed with other media, the result is called ( hypermedia )

 

英译汉

979.In each of these statements , there is a list of individuals , which is given by the argument list , together with phrases that describe certain relations among or properties of the individuals mentioned in the argument list.

在每个陈述中有一个用变元表给出的个体表，以及描述变元表中那些个体间的关系或性质的一些短语。

980.Another reason commonly given that languages like Lisp, TCL, and Smalltalk are good for prototyping is that they don’t require you to pin down decisions early on------ these languages are semantically rich.

一般认为像Lisp、TCL和Smalltalk这样一些语言十分适合于原型法的另一理由，是因为它们不要求你受早期决定的约束-----这些语言的语义是很丰富的。

981.We have systems which can see well enough to “recognize” objects from photographs , video cameras and other sensors.

现在有些系统的视觉好得足以“识别”照片上、摄象机和其他传感器拍摄得图像上得物体。

982. In the meantime , the lure of a cheaper and easier-to-maintain intranet infrastructure brought about by the use of a relatively standard Web client has many IS managers enthusiastic about using Web browsers.

同时，在通过使用比较报纸的Web客户机而带来的较便宜、较易维护的内部网基础设施的诱惑下，许多信息系统的经理对使用Web浏览器很热情。

983. Work parts are automatically loaded at central locations on to the handling system and are routed to the  proper machine tools.

工作部件被自动地装在处理系统的中心位置，并经由指定路线传送给适当的机床。

984.In each of these statements , there is a list of individuals , which is given by the argument list , together with phrases that describe certain relations among or properties of the individuals mentioned in the argument list.

在每个陈述中有一个用变元表给出的个体表，以及描述变元表中那些个体间的关系或性质的一些短语。

985.A handheld’s constraints（局限性） mean that it’s usually impossible to directly port a desktop application to a wireless handheld device. For the same reasons, it’s difficult to directly access most Web sites with a handheld device. Web applications are traditionally designed based on the assumption that visitors will have a desktop computer with a large screen and a mouse.

手持设备的局限性意味着它通常不能直接把台式应用程序移植到无线手持设备上，出于同样的理由，用手持设备直接访问多数Web站点也很困难。Web应用程序传统上是基于访问者拥有带大屏幕和鼠标的台式计算机这样的假设而设计的。

986.A new concept called the Storage Area Network(SAN)（存储区域网络）could offer an answer to the increasing amount of data that needs to be stored in an enterprise network environment. By implementing a SAN, users can offload storage traffic from daily network operations while establishing a direct connection between storage elements and servers.

对需要在企业网络环境中存储数据量越来越大的问题，一种称之为存储区域网络(SAN)的新概念可能提供了一个答案。通过实现一个SAN，用户可以在存储设备与服务器之间建立直接连接的同时，把存储传输负荷从日常网络操作中分出来。

987. A Storage Area Network（SAN，存储区域网） does not need to be a physically separate network, either. It can be a dedicated sub-network, carrying only the business-critical I/O traffic between servers and storage devices. A SAN, for example, would not carry general-purpose traffic such as e-mail or other end-user applications. This type of net avoids the unacceptable trade-offs inherent in a single network for all applications

SAN不需要在物理上是一个单独的网络。它可以是一个专用的子网，只在服务器与存储设备之间传输关键业务I/O信息。例如，SAN不传送通用意义上的信息，如电子邮件或其它最终用户应用程序。这类网络避免了单一网络中固有的不能接受的拆衷

988. Plug and Play(即插即用)——basically a set of PC architecture specifications---is an effort by hardware and software vendors to design intelligence into PCs to handle installation and configuration tasks automatically and without user intervention.

With a plug-and-play system, users can install devices into or remove them from a desktop or mobile PC; dock and undock desktop PCs from a network; and optimally configure the system for different applications without modifying configuration parameters or expansion-card jumper settings.

即插即用——基本上是一组PC机体系结构的规范，是一种由软硬件厂商将智能设计进PC机的工作，以便自动地和无须用户干预地处置安装与配置任务。

有了即插即用系统，用户就能把设备装进或移出台式或移动式PC机，使台式PC机联网或脱网;以及为不同应用最佳地配置系统而无须修改配置参数或扩展卡的跳线装置等。

989.IPV6——the next-generation networking protocol——promises to change the way corporate networks and the Internet work.IPv6 (also referred to as IPng or ,simply,v6)will eliminate some of IPv4's shortcomings that have appeared as a result of the global Internet explosion.IPv6 is a much-needed improvement, promising easier-to-obtain IP addresses, cheaper and faster routing, and such features as quality of service(QOS, 服务质量) and encryption（加密）.

IPv6——下一代的连网协议，有希望改变公司网络和因特网的工作方式。IPv6也叫做IPng，或简称v6，将消除IPv4因全球因特网爆炸性发展而带来的某些缺点。IPv6是一项非常需要的改进，它许诺更容易获得IP地址，更快更便宜建立路由以及具有较好的服务质量(QOS)和加密等特点。

990. RISC processors, because they are software-programmable, provide the flexibility to adapt to the rapidly evolving data communications market. However, they lack ASIC-level performance because of their generalized(归一化的) architectures. ASICs solve the performance problem but can take 12 to 18 months to develop; require scarce, specialized engineering talent to implement; and have fixed functionality. Modifying an ASIC can cost six to nine months in time-to-market and, even worse, can force forklift upgrades on customers who own equipment based on out-of-date silicon(硅).

RISC处理器由于是可编程的，故提供了灵活性，以适应快速发展的数据通信市场。然而，由于它们采用归一化的体系结构，故缺乏ASIC档次的性能。ASIC解决了性能问题，但要花12至18个月时间来开发，并需要不多见的专门工程人才来具体实现，同时具备固定不变的功能性。修改ASIC可能要以推迟6至9个月产品上市的时间为代价。更有甚者，可能强迫拥有基于过时硅电设备的客户升级。

991. Hand-held devices（手持设备） are more limited than desktop computers in several important ways. Their screens are small——perhaps a few inches square or able to display only a few lines of text-and they’re often monochrome instead of color. Their input capabilities are limited to a few buttons or numbers, or entering data takes extra time, as happens with a personal digital assistant’s (PDA) handwriting-recognition capabilities. They have less processing power and memory to work with, and their wireless network connections have less bandwidth and are slower than those of computers hard-wired to fast LANs.

手持设备在多个重要的方面比台式计算机更受限制。它们的屏幕很小——也许只有几平方英寸或者只能显示几行文本信息，它们常常是单色的而不是彩色的。它们的输入功能局限于几个按键或数字键，或者像个人数字助理(PDA)手写体识别功能那样，输入数据要花很长时间，它们所拥有的工作处理能力和内存都较小。比起那些通过计算机硬连线与快速局域网相连的连接，它们的无线网络连接带宽较窄，速度也较慢。

992. Digital subscriber line technology comes in a bewildering variety of flavors, but they all have one thing in common——they use various modulation techniques to turn those plodding "last mile" loops of copper between the customer premises and the telco's(电信公司) central office into high-speed data and voice carriers. Most of the focus has been on ADSL(asymmetric digital subscriber line),which delivers rates of 32 Kbps to 8.192 Mbps downstream, and 32 Kbps to 1.088 Mbps upstream to the network, while providing phone service at the same time on the same line.

数字用户环路(DSL)技术有几种令人疑惑的不同变种，但它们都有一样公共的东西——它们用不同的调制技术，把用户房屋和电话公司的中心局之间低速的"最后一英里"铜线回路变成高速的数据和话音的载体。(人们)注意力多数集中在ADSL(不对称数字用户环路)上，它给出32K至8.192Mbps的下行速度和32K至1.088Mbps的上行速度，同时在同一线路上提供电话服务。

993. But even without a new OS, these features can be utilized. Leveraging Windows' driver model, specialty vendors will offer drivers that can fully exploit these integrated features. Thus providing dramatically improved——or arguably, finally usable-video and speech capabilities. Of course, this Pentium-Windows chasm provides an opportunity for other operating system vendors such as Red Hat and Be Inc. That is assuming that they can react like the Microsoft of old.

但即使没有新的OS，也能利用这些特性。通过利用Windows的驱动程序模型，专业公司将提供全面利用这些内在特性的驱动程序，从而提供戏剧性改进了的——或者还有争议，但最终能使用的视频与语音功能。当然，这场Pentium-Windows的角逐为其它的操作系统公司，如Red Hat公司和Be公司提供了机会。这是假设他们能像过去的微软公司那样工作。

994. Given the relative quickness of software development, one would think that software solutions would lead the computing agenda for many years. But as software delays have become more profound and commonplace, hardware-featured solutions are beginning to offer better solutions than their software counterparts. And given the improving capabilities of hardware development, hardware vendors will become the clear leader in this race.

在假设软件开发较快的情况下，人们会认为软件方案将在计算领域独领风骚许多年，但随着软件开发的延迟变得更严重、更常见，以硬件为特色的方案开始优于同类软件方案。在硬件开发能力得到改进的情况下，硬件厂家将在这场竞赛中明显领先。

995.Video compression is a collection of techniques used to shrink video files. Embodied by products called codecs (compression/decompression),these methods fall into two general categories: interframe and intraframe compression.

Interframe compression uses a system of key and delta frames to eliminate redundant information between frames. Key frames store an entire frame, while delta, or “difference”, frames record only the interframe changes. During decompression, the CPU builds frames from the key frames and accumulated deltas.

Intraframe compression is performed entirely within individual frames. During intraframe compression, codes use a variety of techniques to convert pixels to more compact mathematical formulas. The simplest technique is called run length encoding (RLE), in which rows of adjacent identical pixels are grouped together.

视频图像压缩是一组用来缩小视频图像文件大小的技术. 由被称为Codecs(压缩/解压)产品所体现的这些方法分为两大类: 帧间压缩和帧内压缩.

帧间压缩利用关键帧和§帧方法来消除帧之间的冗余信息. 关键帧存储一幅完整的帧, 而§帧或”差异”帧, 仅记录帧间变化. 解压时, CPU从关键帧和累加的§帧来构造各个帧.

帧内压缩是完全在个别的帧内进行的. 在帧内压缩时, Codecs使用各种技术把像素转换成更紧凑的数学公式. 最简单的技术称作行程长度编码(RLE). 按这种编码法, 各行中相邻的相同像素串归在一起.

996. Block: A sequence of executable statements which is a part of an executable constructor.

Data object: A variable or a constant.

Data entity: A data object, the result of the evaluation of an expression, or the result of a function reference.

Definition: A derived type definition defines a derived data type. A subprogram definition defines a user-defined subroutine or function. A variable or a record of an internal file is defined if they have a valid value.

Double precision real: The double precision real type is a special case of the real type.

FORTRAN processor: The computing system consisting of hardware and software by which programs are transformed for use on that system.

Parent object: A subobject is a part of a parent object.

Presence: An optional dummy argument is present if an actual argument is associated with it which either a present dummy argument of the caller is or which is not a dummy argument of the caller.

Reference: A “data object reference” is the appearance of the data object name or data object designator where its value is required during program execution.

Variable: A named variable is a scalar or an array object that has an own name. An unmanned variable is an array element, an array section, a structure component, or a character string.

块(程序块): 可执行语句序列, 它是可执行结构的一部分

数据对象: 变量或常量

数据实体: 数据对象、表达式球值的结果或函数引用的结果

定义:导出类型定义定义导出的数据类型.子程序定义定义用户定义的例行子程序或函数.变量或内部文件的记录被定义,如果它们有有效值的话.

双精度实型:双精度实型是实型的一种特殊情形.

FORTRAN处理器: 由硬件和软件组成的计算系统,程序由此软件变换以供在此系统上使用.

父对象:子对象是父对象的一部分

存在: 一个可任选的哑变元是存在的,如果与他相关联的实在变元或者是调用程序之存在的哑变元,或者根本不是调用程序的哑变元

引用: ”数据对象引用”是程序执行期间需要其值的数据对象名或数据对象命名符的出现.

变量: 有名变量是标量或有自己名的数组对象.无名变量是数组元素, 数组段, 结构成分或字符串

997. Objected-based logical models are used for describing data at the conceptual and view levels. They are very close to human logic. Many different models are available to describe object-based logic models. The most important among them are semantic data model and entity-relationship model. Semantic data model provides a facility for expressing meaning about the data in the database. The Entity-Relationship model (E-R model) is based on a perception of a real world which consists of a collection of objects called entities and relationships among these objects. An entity is an object, which can be uniquely distinguished from other objects.

Record-based logical models define the overall logical structure of the database as well as higher level description of its implementation.

Physical data models are used to describe data at the lowest level.

基于对象的逻辑模型用于描述概念层与视图层的数据. 它们非常接近于人的逻辑. 很多不同的模型可用来描述基于对象的逻辑模型, 其中最重要的是语义数据模型和实体关系模型. 语义数据模型提供了表达数据库中数据之意义的设施. 实体关系模型(E-R模型)是基于这样的认识: 现实世界是由一组称为实体的对象和这些对象之间的关系组成的. 实体是对象, 它能与其他对象唯一地区别开.

基于记录的逻辑模型定义数据库的整个逻辑结构以及其实现的更高级描述.

物理数据模型用于描述最低层的数据.

998. An operating system is the software which acts as an interface between a user of a computer and the computer hardware. The purpose of an operating system is to provide an environment in which a user may execute program.

We can view an operating system as a resource allocator. A computer system has many resources. The operating system acts as the manager of these resources.

操作系统是一种软件,它是作为在计算机用户和计算机硬件之间的一个接口.

操作系统的目的是给要执行程序的用户提供一个环境.

可以把操作系统看作是一个资源分配程序

一个计算机系统有许多资源

操作系统是这些资源的管理者.

999.A computer system has input, output, storage, and processing components.

The processor is the “intelligence” of a computer system. A single computer system may have several processors.

       Each processor, sometimes called the central processing unit or CPU, has only two sections.

      All programs and data must be transferred to primary storage form an input device before programs can be executed or data can be processed.

一个计算机系统的组成部件有: 输入,输出,存储和处理

处理器是计算机系统的核心部件

一个计算机也行有多个处理器

有时候,处理器被称作中央处理机,它只有两个部件

程序执行之前或数据被访问之前,所有的程序和数据都必须经过输入设备传到主存储器

1000. Many networks exist in the world, often with different hardware and software. People connected to one network often want to communicate with people attached to a different one.

  Form the user’s point of view, the Web consists of a vast, worldwide collection of documents.

  Every Web site has a server process listening to TCP port 80 for incoming connections from clients. After a connection has been established, the client sends one request and the server sends one reply.

世界上有许多网络,它们具有不同的软件和硬件

连在某一网络上的人们经常同连在不同网络上的人们交流

从用户的观点来看,Web拥有巨大的,广泛的文档

每个Web站点有一个服务器,它通过监听TCP的80端口来查看来自用户的连接请求

一个连接建立之后,用户发送一个请求,然后服务器发送回答

汉译英

1001. Linux是不是像Windows那样太大以及需要系统资源太多，以致于不能满足嵌入式系统的约束要求呢？与Windows不同，Linux本来就是模块化的，并且能够很容易缩减成紧缩配置，这种配置几乎与DOS差不多大，甚至能放到一张软盘上。此外，因为Linux源码是免费可用的，所以可以按照独特的嵌入式系统要求改编该操作系统。

这样，并不令人惊奇，开放源代码Linux已经建立了一个新的操作系统开发和支持范例，在那里数以千计的开发人员继续贡献于不断发展的Linux代码库。此外，几十家面向Linux的软件公司已经出现----它们热切支持那些为建立从工厂自动化到智能设备范围很广的应用系统的开发人员的需求。

Is Linux , like Windows , too large and demanding of system resources to fit the constraints of embedded system? Unlike Windows , Linux is inherently modular and can be easily scaled into compact configurations ,barely larger than DOS ,that can even fit on a single floppy. What’s more, since Linux source code id freely available, it’s possible to customize the OS according to unique embedded system requirements.

It’s not surprising, then, that open source Linux has created a new OS development and support paradigm wherein thousands of developers continually contribute to a constantly evolving Linux code base. In addition, dozens of Linux-oriented software companies have sprung up eager to support the needs of developers building a wide range of applications, ranging from factory to intelligent appliances.

1002. 对许多嵌入式系统，为了适应诸如RAM、固态盘、处理机速度，以及功耗的约束，嵌入的Linux的主要任务是，使系统所需的资源最小。嵌入式操作可能需要从一个芯片盘或紧凑闪存固态盘上自举；或者自举和运行在没有显示器和键盘的环境，或经由以太网连接，从远程设备装入应用程序。

现成的小Linux有许多来源，其中有日益增多的面向应用的Linux配置和分发版，这些都被修改成适用于特定的应用。例如路由器、防火墙、互联网/网络设备、网络服务器、网关等。

你也可选择建立你自己喜欢的嵌入式Linux，从一个标准分发版开始，略去不要的模块。虽然如此，还应该考虑从别人的工作配置基础上开始你的工作，因为他们的版本的源码可用于那个目的。最好的是，这种在别人努力的成果上建立系统，在Linux团体中不仅是完全合法的，也被鼓励。

For many embedded systems , the main challenge in embedding Linux is to minimize system resource requirements in order to fit within constraints such as ,RAM solid state disk(SSD), processor speed, and power consumption . Embedded operation may require booting from a DiskOnChip or CompactFlash SSD ; or booting and running without a display and keyboard ; or loading the application from a remote device via an Ethernet LAN connection.

There are many resources of ready-made small foot-print Linux. Included among these are a growing number of application-oriented Linux configurations and distributions that are tuned to specific applications. Some examples are routers, firewalls ,internet/network appliances ,network servers ,gateways ,etc.

You may also opt to create your own flavor of embedded Linux ,starting from a standard distribution and leaving out modules you don’t need. Even so ,you should consider jump-starting your efforts by beginning with someone else’s working configuration ,since the source code of their version will be available for that purpose . Best of all ,this sort of building on the efforts of others in the Linux community is not only completely legal but also encouraged!

1003.一个长期目标可以是开发交互式程序变换系统，它帮助程序员把程序并行化并提供反馈和指导。这种想法的问题是半自动化程序变换实现办法仍然是现行研究的对象，甚至对于顺序程序也是。在中期内，导出实际的并行程序的、产品质量变换程序未必可能出现。传统的方法是讲授一些算法，然后用具有明显并行性的程序设计语言明确地表达它们。这很可能是更成功的，特别是因为已知的一些并行算法的主要部分很大，并且在迅速地增长。初步迹象表明，倘若语言与支持工具充分的话，书写并行软件不比书写顺序软件显著地更困难。

A long tem goal could be to develop interactive program transformation systems that assist programmers in parallelizing programs and provide feedback and guidance. The problem with this idea is that the approach of semiautomatic program transformations is still an object of active research, even for sequential programs. In the medium terms, a production-quality transformer for deriving realistic, parallel programs is unlikely to appear. The traditional method of teaching algorithms is likely to be more successful, especially since the body of known parallel algorithms is large and growing rapidly. Initial indications seem to be that writing parallel software is not significantly harder than writing sequential software, provided the languages and support tools are adequate.

 

1004.从供选择的答案中，选出应填入下面叙述中{ }内的最确切的解答，把相应编号写在答卷的对应栏内。
(1) Network managers have long {awaited} practical voice-over-IP(VOIP) solutions. VOIP {promises} ease network management and decreases costs by converging at a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's headquarters with far-reaching branch offices can { save }tremendous amounts of {money} in long distance phone bill, provided that solution delivers POTS-like voice { quality } over the Internet.
(2) Basically, a firewall is a { standalone} process or a set of integrated processes that runs on a router or { server } to control the flow of networked application traffic { passing } through it. Typically, firewalls are placed on the entry point to a {public} network such as the Internet. They could be considered traffic cops. The firewall's {role}is to ensure to ensure that all communication between an organization's network and the Internet conform to the organization's security policies.
(3) All of these applications will enhance the { quality} of life and spur economic growth. Over half of the U.S. work force is now in jobs that are information {based}. The telecommunication and information sector of the U.S. economy now {account} for 12 percent of the Gross Domestic Product, groing much faster than any other sector of the economy. Last year the { revenues}in this sector exceeded 700 billion dollars. The U.S. exported over 48 billion doooars of telecommunication equipment {alone}.
(4) The growth of switching has { created } a new generation of network management tools that help { technicians}cope with the challenges, { enabling }them to correlate device alarm in order to {better}pinpoint root causes, or to monitor service levels without depending on IP subnetting schemes. These new tools have become essential to coping with the primary {side} effect of any treatment that significantly increases network flexibility: added complexity.
(5) Many word processing programs include spell checker. It checks the spelling of every word in a {document by looking up each word in its dictionary. If the word does not appear in the dictionary, the user is {alerted}to a possible misspelling and possible corrections are often { suggested }. Spell checker does not recognize unusual people names or specialized terms, but it will often allow you to to create your own personal dictionary of specialized words you often use. Spell checker is a valuable aids to proofreading, but it can not catch the {substitution }of one correctly spelled word for another (such as form for from). Thus it does not {grarantee }a document is free of spelling errors.
(6) A local-area network (LAN) is a communications network that {interconnects} a variety of devices and provides a {means} for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster of buildings. The LAN is usually owned by the same organization that owns the {attached} devices. The internal data rate of LAN is at least several Mbit/s. The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a {medium} shared by other stations. A transmission from any one station is {broadcast} to a received by all other stations.

 

 

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