计算机英语练习第一章

计算机专业英语作业答案（供参考）计算机专业英语作业1第1－3章作业一．Vocabulary( 词汇)(一)．Translate the following words and expressions into Chinese(写出下列词组的汉语。

) 1．central processing unit（CPU）中央处理器 2.title bar 标题栏3．operating system 操作系统4．personal computer 个人计算机5．menu bar 菜单栏6．desk publishing 桌面排版7．electronic spreadsheet 电子表格8．hard disk 硬盘9．database 数据库10．Cursor 光标(二)．Fill in the blanks with the corresponding English abbreviations.(根据汉语写出相应的英语缩写。

)1．随机存储器RAM 2．只读存储器ROM3．传输控制协议TC P 4．数字视频光盘DVD5．通用串行总线USB 6．计算机辅助设计CAD7．计算机辅助制造CAM 8．中央处理器CPU(三)．Translate the following Chinese into English.(根据汉语写出相应的英语。

)1．键盘keybord 2．鼠标mouse 3．扫描仪scanner4．打印机printer 5．输入input 6．输出output7．显示器monitor 8．存储器storage 9．数据库database 10．操作系统operating system 11．应用软件application software 12．字处理器word processor 13．网络浏览器web browser二．Tell whether the following statements are true(T) or false(F).(判断正误。

计算机英语实用教程第三版课后练习题含答案第一章练习题答案1. What is the difference between a CPU and a GPU?A CPU (Central Processing Unit) is a general-purpose processor that performs tasks that require complex arithmetic and logical operations. A GPU (Graphics Processing Unit), on the other hand, is a specialized processor that is designed to handle tasks that involve highly parallelizable computations, such as those required for rendering graphics.2. What is the difference between RAM and ROM?RAM (Random Access Memory) is a type of memory that stores data temporarily while the computer is running. RAM is volatile, meaning that its contents are erased when the computer is turned off. ROM (Read-Only Memory), on the other hand, is a type of memory that stores data permanently, even when the computer is turned off. ROM is non-volatile, meaning that its contents are retned even when there is no power.3. What is the difference between a bit and a byte?A bit is the smallest unit of digital information, represented by a binary digit (0 or 1). A byte, on the other hand, is a unit of digital information that consists of eight bits. Bytes are commonly used to represent characters, such as letters and numbers.4. What is the purpose of an operating system?An operating system (OS) is a software program that manages the resources of a computer, including the CPU, memory, storage, and devices such as printers and displays. The purpose of an operating system is to provide an environment in which applications can run and interact with the hardware without directly accessing the underlying hardware.5. What is the difference between a compiler and an interpreter?A compiler is a program that translates the source code of a program into executable code that can be run on a specific computer platform. The resulting executable code can be run multiple times without the need for recompilation. An interpreter, on the other hand, is a program that reads and executes source code instructions one at a time. Interpreted code is typically slower than compiled code, but does not require the extra step of compilation before it can be run.第二章练习题答案1. What is the difference between a LAN and a WAN?A LAN (Local Area Network) is a network that connects computers and other devices that are located in the same physical location, such as an office building or a home. A WAN (Wide Area Network), on the other hand, is a network that connects computers and other devices that are located in different physical locations, often separated by vast distances.2. What is a router and how does it work?A router is a device that connects two or more networks together and forwards data between them. Routers use routing tables to determine thebest path for data to take between networks, and use protocols such as TCP/IP to communicate with other devices on the network.3. What is the difference between TCP and UDP?TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are both protocols used for transmitting data over the internet. TCP is a connection-oriented protocol, which means that it establishes avirtual circuit between two endpoints over which data can be transmitted. TCP uses error correction and flow control to ensure that data arrivesat its destination correctly and in the correct order. UDP, on the other hand, is a connectionless protocol that does not establish a virtual circuit between endpoints. UDP does not provide error correction or flow control, but is often used in situations where speed and simplicity are more important than reliability.4. What is a DNS server?A DNS (Domn Name System) server is a special type of server that translates domn names into IP addresses. When a user enters a domn name into their web browser, the browser sends a request to a DNS server to find the corresponding IP address for that domn name. The DNS serverthen returns the IP address to the browser, which can then connect tothe website.5. What is a firewall and how does it work?A firewall is a security device that is used to protect a networkfrom unauthorized access. Firewalls can be implemented as hardware or software, and typically work by examining incoming and outgoing network traffic and blocking any traffic that does not meet a set of predefinedrules. Firewalls can be configured to block specific types of traffic, such as traffic from certn IP addresses or traffic that uses a certn protocol. Firewalls can also be configured to allow or deny access to specific network resources based on user or device credentials.。

Unit 1Text one1.Match the following words with their proper Chinese meanings.（中英文搭配）printer 打印机display 显示器floppy disk 软盘motherboard 主板CPU 中央处理器mouse 鼠标memory 存储器external modem 外部调制解调器hard disk 硬盘CD-ROM 只读光盘存储器Text two1. Choose the best answer for each of the blanks.（完形填空）Whenever new information is entered, it must 1 somewhere in the computer’s 2 . Later, the CPU must also be 3 to get this information from memory. This is where RAM is needed. The CPU can 4 write to and read from RAM. RAM is called Random Access Memory 5 the CPU can do directly to any memory location in it. The CPU does not have to look 6 all of RAM to find the spot it needs. But RAM only 7 the data temporarily. As soon as you switch the computer 8 , all that information disappears from the RAM. When you switch the computer on again, the RAM is 9 , and ready 10 a new program and new data.(1) A. store B. be stored C. storing D. stored(2) A. processor B. printer C. memory D. mouse(3) A. easy B. capable C. good D. able(4) A. both B. too C. also D. either(5) A. so B. therefore C. because D. for(6) A. on B. through C. for D. down upon(7) A. takes B. operates C. erases D. holds(8) A. off B. on C. up D. down(9) A. full B. empty C. zero D. blank(10) A. receive B. be received C. receiving D. received1-5：BCDCC6-10: BDABA2. Translate the following sentences into English.（汉译英）(1)我的计算机经常有出错信息产生，我不知道该怎么办。

《计算机英语教程双色版》英语练习1及答案Single choice:1.Because of their size and cost，these computers are relatively rare．（D ）A．Minicomputers B．Mainframe computersC. microcomputersD. supercomputers2.A system component that translates data and programs that humans can understandinto a form that the computer can process is called a(n) （A ）.A. input deviceB. pointerC. output deviceD. display3. The system component that controls and manipulates data in order to produce information is called the（D）.A．monitor B．mouse C．keyboard D．microprocessor4. The smallest unit in a digital system is a（B ）.A. byteB. bitC. wordD. character5.Windows XP, Windows Vista, and Macintosh OS X are all examples of（B）. A．application software B．operating systems C．browsers D．shareware6.We call the software that contain a word processor, spreadsheet and other programs.(A )A. an application suiteB. home publishingC. operating systemD. reference software7.TCP is a ( A ).A. connection-oriented protocolB. connectionless protocolC. application layer protocolD. network layer protocol8.A(n) ( C ) program provides access to Web resources．A.．WebB.．ISPC.．browserD.．URL9.( A ) is the most popular Internet activity.A. CommunicationB.．ShoppingC.．SearchingD.．Entertainment10.The Internet was launched in 1969 when the United States funded a project thatdeveloped a national computer network called（D ）A.．AARPNET B．CERNET C. CERN D.．ARPANET11.( A ) converts the assembly language instructions into machine code.A. AssemblerB. InstructionC. MacroinstructionD. operand12. A project using the （ C ）moves down a series of stepsstarting from an initialidea to a final product.A. code-and-fix modelB. Big-Bang modelC. Waterfall modelD. Spiral model13.The process used to create a software product from its initial conception to itspublic release is known as the software development （D ）.A. principleB. methodC. projectD. life cycle model14. A collection of related files is called a（B）A. characterB. databaseC. fieldD. record15. It is a good idea to throw away the emptying box and the original packing material when you finish setting up a new system.（B ）A. TrueB. False16.Each branch office in a company can have its own network protocol. （A ）A. TrueB. False17.one advantage of high level languages is requiring less time to write. （A ）A. TrueB. False18.The waterfall method is usually the first one taught in programming school. （A ）A. TrueB. False19. DVD stands for（C ）A. digital video dataB. direct video diseC. digital versatile discD. direct versatile disc20.The main task of the job management is（ A ）.A. the scheduling of jobsB. weighing a variety of factorsC. MultiprogrammingD. establishes a table21.（ D ）is the first thing in deciding the overall platform you will be looking for.A. Selecting the size of the hardwareB. Selecting type of removable storageC. Selecting amount of memoryD. Selecting a operating system22.T CP/IP reference model has two parts （C ）.A. TCP and UDPB. FTP and SMTPC. TCP and IPD. FTP and DNS23."GUI" stands for（ C ）A. Gnutella Universal Interface.B. Graphic Uninstall / Install.C. Graphical User Interface.D. General Utility Interface.24.R ules for exchanging data between computers are called （C ）A. programsB. procedures C．protocols D．hyperlinks25.I F-THEN-ELSE structure is otherwise known as a(n) （ D ）A. sequence structureB. loop structureC. iterative structureD. selectiaon structure26.T he acronym DBMS stands for what? （B ）A. document binder management systemB. database management systemC. double-blind management setupD. data binding and marketing structure27.Database can take advantage of ( B ) to increase their speed?A.wordB. indexingC. characterD. instructions28.Operating system provides a stable ,consistent way for application to deal with thehardware without having to know all the details of the hardware. （A ）A. TrueB. False29.W hich computer can be defined as a small,relatively inexpensive computer designedfor an individual user? （ A ）A. PCB. supercomputerC. mainframeD. Minicomputer30.T he classic crude of a computer is that it contains thress elements,which is not a partof computer?（D ）A. processor unitB. memoryC. I/OD.mouse31.W hich is the “brain” of the computer? （ A ）A. CPUB. monitorC. I/OD.operating system32. Which is not types of computers’ operating system? ( D )A. RTOSB. single-user,single taskC. single-user,multi-taskingD. multi-user,single task33.The elements of a computer network is not include ( D )?A. hardwareB.softwareC. protocolsD. application34. A programming language is a(n) ( B ) designed to express computation that can beperformed by a machine.A. machine languageB. artificial languageC. natural languageD. low-level language35.The difference between natural language and programming language is that naturallanguage are only used for interaction between people,while programming language also allow humans to communicate instructions to machines. ( A )A. TureB. Flase36.The model of database in most common use today is the ( A )?A. relational modelB. hierarchical modelC. network modelD. all of that37.Which is not the TCP/IP protocols in the most commonly used?( D )A. IPB. TCPC. UDPD. GUI38.All network are made of basic hardware,below which is not include them?( D )A. NICB. BridgesC. SwitchesD. RAM39.RAM is Random Access Memory ,and is the basic kind of ( A )memory.A. internalB. external40.In general, a minicomputer is a(n) ( A ) system capable of supporting up to 200 usrs simultaneously.A. multi-processingB. single processing41. There are some measures which describe the size of your display ,which are include ?( D )A. aspect ratioB. screen sizeC. color depthD. A and B42. The way in which the screen size is measured for CRT and LCD monitor is different.( A )A. TureB. Flase43. ( C ) is the first thing loaded onto the computer---without it ,a computer is useless.A. power-on self testB. set up applicationsC. operating systemD. hardware44.The primary index must ensure a unique reference to a record.( A )A. TureB. Flase。

济南⼤学计算机专业英语第⼀章标准答案.docHomework of Chapter One1. Chapter 1 Multiple ChoiceSelect the best answer for each question below. When you are finished, check your answers by clicking the 'Check Answers' button at the bottom of the page.1.People, procedures, software, hardware, and data are the five parts of a(n)competency systemcomputer systeminformation systemsoftware system2.Procedures are typically documented in manuals writtenby computer specialistsend usersMicrosoftservice providers3.Which of the following is an example ofconnectivity datahard diskInternetpower cord4.Windows 7 is an example of a(n)application software browseroperating systemshareware5.The most powerful type of computer.mainframe computersmicrocomputersminicomputerssupercomputers6.The system component that controls and manipulates data in order to produce information is called thekeyboardmicroprocessormonitormouse7.These devices translate data and programs that humans can understand intoa form that the computer can process.displayinputoutputpointer8.A DVD is an example of a(n)hard diskoptical discoutput devicesolid-state storage device9.This type of file is created by word processors.worksheetdocumentdatabasepresentation10.Many experts are predicting that this revolution is expected to dramatically affect the way we communicate and use computer technology.graphicsinput memory wireless2. Chapter 1 MatchingMatch the definitions with the terms in the box to the right by entering the letter for each term next to its correct definition below.1.e Guidelines people follow when using software.2.f Consists of the step-by-step instructions that tell the computer how to do its work.3.i Software that enables the application software to interact with the computer hardware.4.h The most powerful type of computer.5.a The least powerful and most widely used type of computer.6.c Translates the processed information from the computer into a formthat humans can understand.7.g Holds data and programs even after electrical power to the system has been turned off.8.b Uses laser technology.9.d A type of handheld computer.10.j The largest network in the world. a.microcomputerb.optical discsc.output deviced.PDAe.proceduresf.programg.secondary storageh.supercomputeri.system software j.the Internet3. Chapter 1 Open-Ended Questions⑴. Explain the five parts of an information system. What part do people play inthis systemAn information system typically consists of: people, procedures, software, hardware, data, and connectivity. Information systems are used by people in order to increase productivity.Procedures are rules or guidelines for people to follow when using software, hardware, anddata. Software is a program that contains the step-by-step instructions thattell the computer how to do its work. Hardware consists of the physical equipment thatprocesses the data to create information. Data consists of raw unprocessed facts, including text, numbers, images, and sounds. Almost all of today's computer systems add anadditional part to the information system. This part, called connectivity , typically uses the Internet and allows users to greatly expand the capability and usefulness of their information systems.⑵ . What is system software What kinds of programs are included in system softwareSystem software is “background ”software that enables the application software to interact with the computer. System software consists of the operating system, utilities, device drivers, and language translators. It works with application software to handle the majority of technical details.⑶. Define and compare basic and specialized application software.-Describe some different types of basic applications.-Describe some types of specialized applications.Basic or general-purpose applications are widely used in a large number of careers. One of these general-purpose applications is a browser to navigate, explore, and find information on the Internet. Other basic applications are word processors, spreadsheets, databasemanagement systems, and presentation graphics.Specialized applications are programs that are narrowly focused on specific disciplines and occupations. Some of the best known are multimedia, Web authoring,graphics, virtual reality, and artificial intelligence.⑷. Describe the different types of computers.-What is the most common type-What are the types of microcomputersThere are four types of computers: supercomputers, mainframe computers, midrange and microcomputers. Microcomputers are the least powerful, yet the most widely used type of computer. There are four types of microcomputers: desktop computers, notebooks, tablets, and handheld computers.⑸. What is connectivity What are wireless devices and the wireless revolution What isa computer network What are the Internet and the Web What is cloud computingConnectivity is the capability of the microcomputer to use information from the world beyond one ’desk. Data and information can be sent over telephone or cable lines and through the air so that computers can talk to each other and share information. Wireless devices are wireless mouse, wireless network card and wireless modem etc.Wireless revolution is a revolution that is expected to dramatically affect the way wecommunicate and use computer technology.Computer network is a communication system connecting two or more computers and their peripheral devices to exchange information and share resources.Internet is a huge computer network available to everyone with a microcomputer and a means to connect to it. It is the actual physical network made up of wires, cables, and satellites as opposed to the Web, which is the multimedia interface to resources available on the Internet.Cloud computing is that data are stored at a server on the Internet and available anywhere the Internet can be accessed. 4. Chapter 1 True / False Questions1.The parts of an information system are: people, procedures, software, hardware,data, and connectivity.TrueFalse2.The purpose of software is to convert data into information.TrueFalse3.Software is another name for a program or programs.TrueFalse4.To be a competent computer user, you must understand the essentials ofinformation technology (IT).TrueFalse5.Application software is "background" software which helps the computermanage its own internal resources.TrueFalse6.System software is a collection of programs.TrueFalse7.Antivirus software is a Windows utility that is unnecessary as long as you arecareful browsing the Internet.TrueFalse8.System software might be described as end user software.TrueFalse9.A browser is an example of system software.TrueFalse10.Another name for a midrange computer is server.TrueFalse5. Chapter 1 Fill in the Blank Questions/doc/5f5720775222aaea998fcc22bcd126fff6055dc3.html puter _ competency _ refers to acquiring computer-related skills.2.2.In an information system, the rules or guidelines for people to follow are called_ procedures _.3._Hardware _ is the component of the information system that is described as the equipment that processes data to create information.4.The component of the information system that is described as raw, unprocessed facts, including text, numbers, images, and sounds, is called data_.5._ System software_ is a collection of programs that helps the computer manage its own resources and enables application software to interact with computer hardware.6._Device drivers_ are classified under system software and are specialized programs designed to allow input or output devices to communicate with the rest of the computer system.7.Application software can be categorized as either general-purpose applications, specialized applications or _mobile _ applications.8.The general-purpose application used to navigate, explore, and find information on the Internet is called a _ browser _.9._Mainframe _ computers are not nearly as powerful as supercomputers, but are capable of great processing speeds and data storage.10.The four types of microcomputers are: _ desktop _ computers, notebooks, tablets, and handheld computers.。

《计算机专业英语》第01章在线测试A BC DThese days it is not uncommon for one to see people usingA BC DJust a minute, I m waiting for the computer to ＿＿＿＿＿＿＿＿A BC Dwhat does " neural network " mean?A BC Dhow to translate the word "A BC DC、output devicesD、a busE、crt screen2、According to the text,modern digital computers can be divided into four major categories on the basis of cost and performance.They are ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿.A、microcomputersB、workstationC、lenovoD、mainframesE、note bookF、minicomputers3、One of trends in computer development is ＿＿＿＿＿＿＿＿＿,the effort to compress more circui t elements into smaller and smaller ＿＿＿＿＿＿spaceA、microminiaturizationB、micromoduleC、chipD、chat4、We can define a computer as a device that ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿A、accepts inputB、deal everythingC、processes dataD、stores dataE、produces output5、A program is a sequence of ＿＿＿＿＿＿＿＿ that can be eｘecuted by a computer.It can either be built into the hardware or exist independently in the form of ＿＿＿＿＿＿＿＿.正确错误Computer is able to do different kinds of tasks.正确错误There are no differences between the information processor and human (正确错误In the future, computers are capable of original thoughts.正确错误Information can be input only by people.正确错误。