大工17春《专业英语（计算机英语）》在线测试123答案
大工17春《专业英语（计算机英语）》在线测试1一、单选题：
1.A( ) is the primary input device. It is used for entering letters, numbers and commands into the system. (满分:4)
A. RAM
B. keyboard
C. outputdevices
D. memory
2.( ) performs arithmetic, comparison, and logic operations. It is one part of the CPU. (满分:4)
A. RAM
B. ROM
C. CPU
D. ALU
3.The two components of the CPU are connected by a kind of electronic roadway called a(an)( ). (满分:4)
A. USB
B. bus
C. port
D. keyboard
4.( ) is the electronic device that interprets and carries out the basic instructions that operate the computer. (满分:4)
A. Processor
B. hardware
C. memory
D. CPU
5.( ) refers to the physical equipment that can perform the basic functions contained within the data processing cycle. (满分:4)
A. Software
B. Hardware
C. Memory
D. CPU
6.The process of translating instructions into commands is called( ). (满分:4)
A. decoding
B. register
C. digital
D. port
7.( ) are the peripherals that allow users to enter data, programs, commands, and user responses into a computer and transform them into a suitable form for processing. (满分:4)
A. RAM
B. ROM
C. Input devices
D. Memory
8.( ) can be in the form of programs, commands and user responses. (满分:4)
A. Processor
B. Instructions
C. Mouse
D. Port
9.( ) stands for Read Only Memory, it is the computer memory on which data has been prerecorded. (满分:4)
A. RAM
B. ROM
C. CPU
D. Memory
10.The first computers used( ) for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. (满分:4)
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
11.A( ) is an electronic device that operates under the control of instructions stored in its own memory, which can according to specified rules, produce results,and store the results for future use. (满分:4)
A. computer
B. CPU
C. input device
D. output device
12.The fourth generation of computer is( ). (满分:4)
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
13.( ) have more storage capacity than diskettes and also offer faster access to the data they hold. (满分:4)
A. Hard disks
B. Optical disks
C. Zip disk
D. CD
14.The first generation of computer is( ). (满分:4)
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
15.A( ) is a cable which is capable of carrying signals representing data from one place to another. (满分:4)
A. bus
B. USB
C. port
D. keyboard
16.The( ) is the communications medium for the entire computer system. (满分:4)
A. system board
B. input
C. output
D. bus
17.( ) is one of the components of the CPU, tells the rest of the computer system how to carry out a program's instructions. (满分:4)
A. Control unit
B. ALU
C. RAM
D. ROM
18.( ) are output devices that print characters, symbols, and graphics on a physical medium such as paper and a transparency file. (满分:4)
A. Flat panel monitors
B. Printers
C. Keyboards
D. Pointing device
19.( ) stands for Central Processing Unit. It performs the system's calculating and processing. (满分:4)
A. computer
B. CPU
C. input device
D. output device
20.( ) stands for Random Access Memory.It is the main location for holding programs and data that the CPU is presently processing. (满分:4)
A. RAM
B. ROM
C. input devices
D. memory
三、判断题：
1.Output devices are peripherals that allow users to enter data, programs, commands, and user responses into a computer and transform them into a suitable form for processing.( ) (满分:2)
A. 错误
B. 正确
2.Information is summarized data or manipulated data.( ) (满分:2)
A. 错误
B. 正确
3.USB port is a new industry wide standard that will eventually eliminate the need to install adapter cards.( ) (满分:2)
A. 错误
B. 正确
4.Input devices are hardware components that can convey information to a user in a form that they can use.( ) (满分:2)
A. 错误
B. 正确
5.A bus is a cable which is capable of carrying signals representing data from one place to another.( ) (满分:2)
A. 错误
B. 正确
6.Data consists of the raw facts and figures that are processed into information.( ) (满分:2)
A. 错误
B. 正确
7.Software refers to the physical equipment that can perform the basic functions contained within the data processing cycle.( ) (满分:2)
A. 错误
B. 正确
8.ASCII stands for American Standard Code for Information Interchange.( ) (满分:2)
A. 错误
B. 正确
9.Hardware is a computer program made up of a sequence of detailed instructions designed to direct a computer to perform certain functions.( ) (满分:2)
A. 错误
B. 正确
10.Memory also called main memory, primary storage, RAM, is an internal storage area in the computer, where data and programs designed for immediate processing are held.( ) (满分:2)
A. 错误
B. 正确
大工17春《专业英语（计算机英语）》在线测试2
一、单选题：
1.Two types of software are( ) and application software. (满分:4)
A. system software
B. system call
C. system crash
D. system hardware
2.( ) is a device that functions as both a router and a bridge. (满分:4)
A. Repeater
B. Switch
C. Gateway
D. Brouter
3.Linux is an operating system similar to( ) that is becoming more and more popular. (满分:4)
A. Windows 98
B. Windows 2000
C. Windows XP
D. Unix
4.In( ) mode, the communication is unidirectional, like a one-way street. Only one of the two stations on a link can transmit;the other can only receive. (满分:4)
A. half-duplex
B. full-duplex
C. simplex
D. none of the above
5.A( ) is a highly intelligent device that supports connectivity between both like and unlike LANs,and between LANs and WANs or MANs. (满分:4)
A. router
B. repeater
C. switch
D. bridge
6.( ) also called a program, is the series of computer language coded instructions that tells the computer how to perform tasks. (满分:4)
A. Software
B. Hardware
C. Compiler
D. Interpreter
7.In a( ) network, all microcomputers and other communication devices are connected to a continuous loop. (满分:4)
A. bus
B. star
C. tree
D. ring
8.( ), difference between the lowest and highest frequencies transmitted in a particular channel or system. (满分:4)
A. Amplitude
B. Bandwidth
C. Bridge
D. Network
9.( ), the protocol for transferring HTML files on the Web. (满分:4)
A. HTML
B. ISP
C. Client
D. Server
10.A( ) channel allows simultaneous message exchange in both directions.It really consists of two simplex channels, a forward channel and a reverse channel,linking the same points. (满分:4)
A. half-duplex
B. full-duplex
C. simplex
D. none of the above
11.( ), software used in corporate networks(intranets and extranets) to prevent unauthorized people from accessing the network. (满分:4)
A. Firewall
B. Modem
C. Hypertext
D. TCP
12.( ), short for modulator/demodulator, device that converts digital signals into a representation of analog form(modulation) to send over phone lines;a receiving modem then converts the analog signal back to a digital signal(demodulation). (满分:4)
A. Server
B. Network
C. Modem
D. Gateway
13.( ) programs are used to recover deleted or damaged(corrupted) files. (满分:4)
A. Data recovery
B. System call
C. System crash
D. System software
14.The CPU executes programs coded in a lower level language called the( ). (满分:4)
A. utility program
B. language translator
C. machine language
D. backup
15.( ) is the number of times a wave repeats during a specific time interval,that is how many times it completes a cycle in one second. (满分:4)
A. Amplitude
B. Frequency
C. Analog signals
D. Digital signals
16.( ) is an acronym for local area network.It is a group of computers and other devices dispersed over a relatively limited area and connected by a communications link. (满分:4)
A. LAN
B. WAN
C. MAN
D. None of the above
17.A( ) issoftware that looks at an entire high-level program before translating it into machine language. (满分:4)
A. compiler
B. interpreter
C. instruction
D. process
18.( ) is indicated by the height of a wave within a given period of time. (满分:4)
A. Amplitude
B. Frequency
C. Analog signals
D. Digital signals
19.The( ) is automatically loaded into RAM soon after you turn on, or "boot" the computer. (满分:4)
A. application software
B. operating software
C. shell
D. compiler
20.In a( ) network, all microcomputers and other communications devices are connected to a central hub, such as a file server or host computer, usually via(UTP). (满分:4)
A. bus
B. star
C. tree
D. ring
三、判断题：
1.Gateway, interface that enables dissimilar networks to communicate with one another.( ) (满分:2)
A. 错误
B. 正确
2.User interface controls how you enter data or instructions and how information is displayed on the computer screen.( ) (满分:2)
A. 错误
B. 正确
3.Operating system is a set of programs that perform specific tasks for users.( ) (满分:2)
A. 错误
B. 正确
4.LAN, communications network that covers a wide geographical area, such as a state or a country.( ) (满分:2)
A. 错误
B. 正确
5.Application software consists of programs that perform specific tasks for users.( ) (满分:2)
A. 错误
B. 正确
6.Device drivers are specialized programs designed to allow particular input or output devices to communicate with the rest of the computer system.( ) (满分:2)
A. 错误
B. 正确
7.C++ is an object-oriented programming language.( ) (满分:2)
A. 错误
B. 正确
8.Language translators convert the programming instructions into a language that computers understand and process.( ) (满分:2)
A. 错误
B. 正确
9.Upload, to send files from a user's microcomputer to another computer. Compare with download.( ) (满分:2)
A. 错误
B. 正确
10.Bridge, interface that enables WANs to communicate.( ) (满分:2)
A. 错误
B. 正确
大工17春《专业英语（计算机英语）》在线测试3
一、单选题：
1.( ) will provoke radical changes in the teaching process during the coming decades, particularly as smart students discover they can go beyond the limits of traditional teaching methods. (满分:4)
A. Animation
B. WAV
C. Multimedia
D. none of the above
2.( ), which stands for Motion Picture Experts Group(MPEG) Layer 3, is rapidly becoming the standard for music transmission via Internet. (满分:4)
A. MP3
B. MP4
C. JPEG
D. AVI
3.Which one is a word processing and text editing tool?( ) (满分:4)
A. Photoshop
B. Word
C. Extreme 3D
D. Premiere
4.The( ) was the precursor to the Internet. Developed in the late 1960's and early 1970's by the U.S. Department of Defence as an experiment in wide-area-networking that would survive a nuclear war. (满分:4)
A. ARPANET
B. Apple
C. Microsoft
D. None of the above
5.( ) ,conversion of either encoded or enciphered text into plaintext. (满分:4)
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
6.( ), referring to a person who breaks into computer systems for the challenge or steal computer resources or corrupt a computer's data. (满分:4)
A. Hacker
B. Password
C. DES
D. Authenticate
7.( ), technological and managerial procedures applied to computer systems to ensure the availability, integrity and confidentiality of information managed by the computer system. (满分:4)
A. Computer Security
B. Digital signatures
C. Computer virus
D. none of the above
8.( ), the process of compressing a file such that some data is lost after the file is compressed and decompressed. (满分:4)
A. Lossy compression
B. Lossless compression
C. Bitmap
D. Vector image
9.( ) is a computer technology that creates three dimensional real illusion in an artificial world. (满分:4)
A. Vector image
B. Bitmap
C. JPEG
D. Virtual Reality
10.( ) stands for "World Wide Web"; it is the large global collection of Internet servers which support hypertext documents coded in HTML, and transferred via HTTP. (满分:4)
A. Internet
B. WWW
C. ARPANET
D. ISP
11.( ), executable code that, when run by someone, infects other executable code in a computer. (满分:4)
A. Computer Security
B. Digital signatures
C. Computer virus
D. none of the above
12.( ), the process of changing plaintext data into enciphered text through an algorithm. (满分:4)
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
13.( ) is a protocol that lets a user log in to a remote computer and use programs and data that the remote owner has made available, just as if it were their own computer. (满分:4)
A. FTP
B. WWW
C. Telnet
D. NSFNET
14.( ) is a way of transferring files over the Internet from one computer to another. (满分:4)
A. Internet
B. FTP
C. E-mail
D. ISP
15.The( ) isa worldwide system of computer networks in which any one computer can get information from/or talk to any other connected computer using the TCP/IP protocols. (满分:4)
A. Internet
B. WWW
C. ARPANET
D. ISP
16.( )(Joint Photographic Experts Group), standard for compressing continuous-tone still pictures. It does not handle black-and-white images, nor does it handle motion picture compression. (满分:4)
A. JPEG
B. MPEG
C. MIDI
D. none of the above
17.( ), a secret code assigned to a user which is known by the computer system. Knowledge of the password associated with the user ID is considered proof of authorization. (满分:4)
A. Hacker
B. Password
C. DES
D. Authenticate
18.( ) is the messages, usually text, send from one person to another via the Internet. (满分:4)
A. TCP/IP
B. Telnet
C. FTP
D. E-mail
19.( )(Motion Picture Experts Group) standards are the main algorithms used to compress videos.Due to the fact that movies contain both images and sound, it can compress both audio and video. (满分:4)
A. JPEG
B. MPEG
C. MIDI
D. none of the above
20.( ), the process of compressing a file such that,after being compressed and decompressed, it matches its original format bit for bit. (满分:4)
A. Lossy compression
B. Lossless compression
C. Bitmap
D. Vector image
三、判断题：
1.Symmetric key(Private Key):In encryption, a two-key system in which the key used to lock data is made public, so everyone can "lock".A second private key is used to unlock or decrypt.( ) (满分:2)
A. 错误
B. 正确
2.A credit card is a plastic card that allows the holder to obtain goods and services on credit terms without the immediate requirement to pay cash.( ) (满分:2)
A. 错误
B. 正确
3.Asymmetric key(Public Key),in encryption, one key is used to both lock and unlock data.( ) (满分:2)
A. 错误
B. 正确
4.An ISP is a company that provides access to the Internet.( ) (满分:2)
A. 错误
B. 正确
5.TCP/IP is the suite of communications protocols used to connect computers on the Internet.( ) (满分:2)
A. 错误
B. 正确
6.A Domain Name System is an Internet service that translates domain names to or from IP addresses.( ) (满分:2)
A. 错误
B. 正确
7.Electronic Commerce means buying and selling products and services online via the Internet.( ) (满分:2)
A. 错误
B. 正确
8.EDI is a set of computer interchange standards for business documents such as invoices, bills, and purchase orders.( ) (满分:2)
A. 错误
B. 正确
9.An online payment is a monetary transcation from the customer to the vendor over the Internet by credit card, digital cash, e-wallets, and smart cards.( ) (满分:2)
A. 错误
B. 正确
10.A leased line is a line rented from a telephone company for the exclusive use of a customer to access Internet.( ) (满分:2)
A. 错误
B. 正确
附件就是满分答案，需要可以下载。
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