电大计算机专业英语作业3答案.ppt

1、计算机专业英语,第三次作业,一、Vocabulary(词汇),（一）Translate the following words and expressions into Chinese。(写出下列词组的汉语。） 1.transmission media 2.bus network 3.management information system 4.transaction processing 5.decision support system 6.Electronic commerce 7.digital video 8.credit card,1、传输介质 2、总线型网络 3、管理信息系统

2、4、事务处理 5、决策支持系统 6、电子商务 7、数据视频 8、信用卡,9. data warehouse 10. realtime 11. network permission 12. computer virus 13. email attachment 14. network security 15. security patch 16. IMS (Information Management Strateg ),9、数据仓库 10、实时 11、网络权限 12、计算机病毒 13、电子邮件附件 14、网络安全 15、安全补丁 16、信息管理策略,一、Vocabulary(词汇),(二)Fi

3、ll in the blanks with the corresponding English abbreviations(根据汉语写出相应的英语缩写。) 1.局域网 2.广域网 3.万维网 4.超文本链接标示语言 5.文件传送输协议 6.传输控制协议/网际协议 7.开放系统互连 8.电子数据交换 9.企业与个人的电子商务交易方式 10.企业之间的电子商务交易方式,1、LAN 2、WAN 3、WWW 4、HTML 5、FTP 6、TCP/IP 7、OSI 8、EDI 9、B2C 10、B2B,一、Vocabulary(词汇),(三)Translate the following words i

4、nto English(根据汉语写出相应的英语 ) 1.星型网络2.路由器 3.交换机4.IP地址 5.多媒体6.音频 7.视频8.图形 9.图像10.摄像机 11.黑客 12.防火墙,star network,switch,multimedia,video,router,IP address,audio,graphic,video recorder,image,hacker,firewall,二、Tell whether the following statements are true (T) or false (F)(判断正误),1A WAN is a network that conn

5、ects LANs and nodes across a wide geographical area.( ) 2WWW provides access to a variety of Internet resources from different interfaces.( ) 3The chief responsibility of TCP/IP is to ensure reliable point-to-point connectivity( ) 4The main focus of MIS is the management function of an organization.

6、 ( ),T,F,T,F,5Compared with simple non-EDI-based purchase，EDI purchase is faster，cheaper and convenient. ( ) 6A multimedia system allows end users to sharecommunicate and process a variety of forms of information in an integrated manner. ( ) 7Data warehouse is a single source of information to under

7、stand different subjects ( ) 8Data warehouse only contains current information ( ) 9New antivirus software is always more effective in defending virus attack ( ) 10Hackers sometimes Can disguise themselves as internal users and attack your system undetected( ),T,T,T,F,F,T,三、Match the following words

8、 and expressions in the left column with those similar in meaning in the right column(连线题),(一) 1MIS a局域网 2HTML b电子数据交换 3LAN c管理信息系统 4TCPIP d万维网 5www e传输控制协议网际协议 6EDI f企业与个人的电子商务交易方式 7OSI g超文本链接标示语言 8B2C g企业之间的电子商务交易方式 9B2B i开放系统互连,1.c 2.g 3.a 4.f 5.d. 6.b 7.i 8.e 9.i,(二) 1router a音频 2hub b图像 3switch

9、 c集线器 4Multimedia d路由器 5audio e防火墙 6video f交换机 7graphics g多媒体 8Image h视频 9hacker i图形 10firewall j黑客,1.d 2.c 3.f 4.g 5.a 6.h 7.i 8.b 9.j 10.e,四、Fill in the blanks with suitable words or expressions from the list given below，and change the form where necessary(从下面方框中选择合适的词或表达，以其适当的形式填空),traffic facili

10、tate network protocol message transmission packet destination,TCPIP consists of two It uses packet switching to the of messagesPacket switching divides into small unites called Packets travel along the separately，based on the final and network and other network conditions,protocols,facilitate,transm

11、ission,messages,packets,network,traffic,destination,convert transfer networking connect decision routine software package,Management Information System all the components of an organization together. It provides information support for makers. These information is from dataA well-designed MIS can sa

12、ve time for tasks and speed up the of informationThe four elements of MIS are people，hardware， and dataHardware requirements often means , while software requirements often include office .,connects,converted,routine,transfer,networking,packages,decision,software,blend e-mail online hoax attachment

13、anti-virus security program,A virus is a hat self-replicatesThere are many types of virusesBasic virus attacks computers via or Internet connections viruses often come with your mail and are carried by the Several viruses may be combined together to form attackTo defend against virus， you need some

14、toolsThis requires a balancing between user-friendliness and Many software such as NAV can provide such functions plus protection.,program,e-mail,Hoax,attachment,blended,antivirus,security,online,五.Translation(翻译),(一) Translate the following sentences into Chinese(将下列句子翻译成汉语。) 1In recent years，TCPIP

15、 has also begun to be used by telephone companies to provide faster，cheaper telephone transmissions 2The World Wide Web is the latest evolution of an effort to make information on computers throughout the world available to as many users as possible,译：近年来，TCP/IP被逐渐用于电话公司来提供更快、更便宜的电话传输。,译：人们努力想把计算机上的

16、信息传遍全世界，让尽可能多的人能够得到，万维网（WWW）就是为此发展起来的。,3A small network may only connect two computers inside a home to share a single printer and Internet connection 4Thus a management information system collects，transmits，processes，and stores data on an organizations resources and programmers 5. EDI refers to the

17、 electronic exchange of business information between two companies using a specific and structured format over private networks,译：小型计算机网络可能仅由家庭中的两台计算机组成，它们可以共享打印机和因特网连接。,译：管理信息系统基于企业的资源和程序搜集、传输和存储数据。,译：EDI是指两个公司通过私有网络使用特定、结构化的格式电子交换商业信息。,6Information users only have to deal with one integrated envir

18、onment rather than a number of separate information subsystems 7. A multimedia system allows end users to share。transfer and process a variety of forms of information in a unified manner 8The data warehouse is the data environment that can be used as the single integrated source of data for processi

19、ng information,译：信息用户只需要处理一个集成环境，而不是一系列独立的信息子系统。,译：多媒体系统允许终端用户以集成的方式对各种形式的信息进行共享、通信和处理。,译：数据仓库是一种数据环境，是用于信息处理的单一和综合的数据源。,9A computer virus is a computer program that is created to make and spread copies of itself 10There is free firewall software available that can run on minimal hardware and provid

20、e a good level of protection to your network,译：计算机病毒是一种计算机程序，被创建用来制造和传播自身的副本。,译：有免费的防火墙软件，可以运行在最低的硬件配置上，并能较好地保护您的网络。,(二)Translate the following paragraphs into Chinese(将下列各段翻译成汉语）。,1A computer network links computers together to allow users to share hardware，software，and data，and communicate with ea

21、ch other electronicallyComputer networks exist in many sizes and typesWe will discuss the topologies of networks first，and then touch on some hardware issues，including the network devices and the types of transmission media involvedCommunication networks can be classified in terms of their physical

22、arrangement or TopologiesThree common topologies are the star，bus，and ring,译：计算机网络以电子的方式将用户的计算机连接在一起，用户通过网络，就可以共享硬件、软件、数据，就可以相互通信。网络有不同的规模和种类。首先，我们将论述其拓扑结构，然后谈一些硬件问题，包括网络设备和相关的传输介质类型。通信网络可以按照其物理排列或拓扑结构来分类。有三种常见的拓扑结构：星型、总线型和环型。,2. Electronic commerce is the process of buying and selling or exchanging of products and services and information via computer networks using any of the applications that rely on the Internet，such as electronic data interchange (EDI)，e-mail，electronic bulletin boards，fax transmissions，and electronic