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大工17春《专业英语（计算机英语）》在线测试1
一、单选题：
1.（ ） can be in the form of programs, commands and user responses.
(满分:4)
A. Processor
B. Instructions
C. Mouse
D. Port
2.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
3.（ ） 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
4.（ ） 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
5.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
6.（ ） 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
7.（ ） performs arithmetic, comparison, and logic operations. It is one part of the CPU.
(满分:4)
A. RAM
B. ROM
C. CPU
D. ALU
8.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. output devices
D. memory
9.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
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.The first generation of computer is （ ）.
(满分:4)
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
12.（ ） 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
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.（ ） 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
15.（ ） 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
16.The （ ） is the communications medium for the entire computer system.
(满分:4)
A. system board
B. input
C. output
D. bus
17.（ ） 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
18.The process of translating instructions into commands is called （ ）.
(满分:4)
A. decoding
B. register
C. digital
D. port
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.The fourth generation of computer is （ ）.
(满分:4)
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
三、判断题：
1.Software refers to the physical equipment that can perform the basic functions contained within the data processing cycle.（ ）
(满分:2)
A. 对
B. 错
2.ASCII stands for American Standard Code for Information Interchange.（ ）
(满分:2)
A. 对
B. 错
3.Data consists of the raw facts and figures that are processed into information.（ ）
(满分:2)
A. 对
B. 错
4.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. 对
B. 错
5.USB port is a new industry wide standard that will eventually eliminate the need to install adapter cards.（ ）
(满分:2)
A. 对
B. 错
6.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. 对
B. 错
7.Input devices are hardware components that can convey information to a user in a form that they can use.（ ）
(满分:2)
A. 对
B. 错
8.A bus is a cable which is capable of carrying signals representing data from one place to another.（ ）
(满分:2)
A. 对
B. 错
9.Information is summarized data or manipulated data.（ ）
(满分:2)
A. 对
B. 错
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. 对
B. 错
大工17春《专业英语（计算机英语）》在线测试2
一、单选题：
1.（ ） 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
2.（ ）, the protocol for transferring HTML files on the Web.
(满分:4)
A. HTML
B. ISP
C. Client
D. Server
3.（ ） 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
4.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
5.（ ） 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
6.Two types of software are （ ） and application software.
(满分:4)
A. system software
B. system call
C. system crash
D. system hardware
7.（ ） is a device that functions as both a router and a bridge.
(满分:4)
A. Repeater
B. Switch
C. Gateway
D. Brouter
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.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
10.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
11.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
12.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
13.（ ） 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
14.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
15.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
16.（ ）, 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
17.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
18.（ ）, 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
19.A （ ） is software 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
20.（ ） 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
三、判断题：
1.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. 对
B. 错
2.User interface controls how you enter data or instructions and how information is displayed on the computer screen.（ ）
(满分:2)
A. 对
B. 错
3.Gateway, interface that enables dissimilar networks to communicate with one another.（ ）
(满分:2)
A. 对
B. 错
4.Upload, to send files from a user's microcomputer to another computer. Compare with download.（ ）
(满分:2)
A. 对
B. 错
5.Operating system is a set of programs that perform specific tasks for users.（ ）
(满分:2)
A. 对
B. 错
6.LAN, communications network that covers a wide geographical area, such as a state or a country.（ ）
(满分:2)
A. 对
B. 错
7.Bridge, interface that enables WANs to communicate.（ ）
(满分:2)
A. 对
B. 错
8.C++ is an object-oriented programming language.（ ）
(满分:2)
A. 对
B. 错
9.Language translators convert the programming instructions into a language that computers understand and process.（ ）
(满分:2)
A. 对
B. 错
10.Application software consists of programs that perform specific tasks for users.（ ）
(满分:2)
A. 对
B. 错
大工17春《专业英语（计算机英语）》在线测试3
一、单选题：
1.（ ） (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
2.（ ） ,conversion of either encoded or enciphered text into plaintext.
(满分:4)
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
3.（ ）, 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
4.（ ） 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
5.（ ）, 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
6.（ ） 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
7.（ ） 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
8.（ ）, 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
9.（ ） 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
10.（ ）, the process of changing plaintext data into enciphered text through an algorithm.
(满分:4)
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
11.（ ） 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
12.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
13.（ ） 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
14.The （ ） is a 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
15.（ ）, 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
16.（ ） (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
17.（ ）, 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
18.（ ）, 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
19.Which one is a word processing and text editing tool?（ ）
(满分:4)
A. Photoshop
B. Word
C. Extreme 3D
D. Premiere
20.（ ）, 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
三、判断题：
1.Electronic Commerce means buying and selling products and services online via the Internet.（ ）
(满分:2)
A. 对
B. 错
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. 对
B. 错
3.EDI is a set of computer interchange standards for business documents such as invoices, bills, and purchase orders.（ ）
(满分:2)
A. 对
B. 错
4.A Domain Name System is an Internet service that translates domain names to or from IP addresses.（ ）
(满分:2)
A. 对
B. 错
5.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. 对
B. 错
6.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. 对
B. 错
7.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. 对
B. 错
8.Asymmetric key(Public Key),in encryption, one key is used to both lock and unlock data.（ ）
(满分:2)
A. 对
B. 错
9.TCP/IP is the suite of communications protocols used to connect computers on the Internet.（ ）
(满分:2)
A. 对
B. 错
10.An ISP is a company that provides access to the Internet.（ ）
(满分:2)
A. 对
B. 错
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