一、单选题（共 20 道试题，共 80 分。）V 1. ( ) stands for Read Only Memory, it is the computer memory on which data has been prerecorded.
A. RAM
B. ROM
C. CPU
D. Memory
满分：4 分
2. ( ) 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.
A. RAM
B. ROM
C. Input devices
D. Memory
满分：4 分
3. ( ) is one of the components of the CPU, tells the rest of the computer system how to carry out a program's instructions.
A. Control unit
B. ALU
C. RAM
D. ROM
满分：4 分
4. ( ) performs arithmetic, comparison, and logic operations. It is one part of the CPU.
A. RAM
B. ROM
C. CPU
D. ALU
满分：4 分
5. ( ) stands for Central Processing Unit. It performs the system's calculating and processing.
A. computer
B. CPU
C. input device
D. output device
满分：4 分
6. A ( ) is a cable which is capable of carrying signals representing data from one place to another.
A. bus
B. USB
C. port
D. keyboard
满分：4 分
7. A ( ) is the primary input device. It is used for entering letters, numbers and commands into the system.
A. RAM
B. keyboard
C. output devices
D. memory
满分：4 分
8. The two components of the CPU are connected by a kind of electronic roadway called a(an) ( ).
A. USB
B. bus
C. port
D. keyboard
满分：4 分
9. ( ) stands for Random Access Memory.It is the main location for holding programs and data that the CPU is presently processing.
A. RAM
B. ROM
C. input devices
D. memory
满分：4 分
10. ( ) is the electronic device that interprets and carries out the basic instructions that operate the computer.
A. Processor
B. hardware
C. memory
D. CPU
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11. ( ) are output devices that print characters, symbols, and graphics on a physical medium such as paper and a transparency file.
A. Flat panel monitors
B. Printers
C. Keyboards
D. Pointing device
满分：4 分
12. ( ) refers to the physical equipment that can perform the basic functions contained within the data processing cycle.
A. Software
B. Hardware
C. Memory
D. CPU
满分：4 分
13. ( ) can be in the form of programs, commands and user responses.
A. Processor
B. Instructions
C. Mouse
D. Port
满分：4 分
14. ( ) have more storage capacity than diskettes and also offer faster access to the data they hold.
A. Hard disks
B. Optical disks
C. Zip disk
D. CD
满分：4 分
15. The fourth generation of computer is ( ).
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
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16. The first computers used ( ) for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
满分：4 分
17. The process of translating instructions into commands is called ( ).
A. decoding
B. register
C. digital
D. port
满分：4 分
18. The ( ) is the communications medium for the entire computer system.
A. system board
B. input
C. output
D. bus
满分：4 分
19. The first generation of computer is ( ).
A. vacuum tubes
B. transistors
C. integrated circuits
D. microprocessors
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20. 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.
A. computer
B. CPU
C. input device
D. output device
满分：4 分
大工15春《专业英语（计算机英语）》在线测试2
试卷总分：100 测试时间：--
单选题 判断题
一、单选题（共 20 道试题，共 80 分。）V 1. Linux is an operating system similar to ( ) that is becoming more and more popular.
A. Windows 98
B. Windows 2000
C. Windows XP
D. Unix
满分：4 分
2. A ( ) is software that looks at an entire high-level program before translating it into machine language.
A. compiler
B. interpreter
C. instruction
D. process
满分：4 分
3. Two types of software are ( ) and application software.
A. system software
B. system call
C. system crash
D. system hardware
满分：4 分
4. ( ) programs are used to recover deleted or damaged(corrupted) files.
A. Data recovery
B. System call
C. System crash
D. System software
满分：4 分
5. ( ), the protocol for transferring HTML files on the Web.
A. HTML
B. ISP
C. Client
D. Server
满分：4 分
6. The ( ) is automatically loaded into RAM soon after you turn on, or "boot" the computer.
A. application software
B. operating software
C. shell
D. compiler
满分：4 分
7. ( ), 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).
A. Server
B. Network
C. Modem
D. Gateway
满分：4 分
8. ( ) 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.
A. LAN
B. WAN
C. MAN
D. None of the above
满分：4 分
9. 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.
A. half-duplex
B. full-duplex
C. simplex
D. none of the above
满分：4 分
10. 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.
A. half-duplex
B. full-duplex
C. simplex
D. none of the above
满分：4 分
11. The CPU executes programs coded in a lower level language called the ( ).
A. utility program
B. language translator
C. machine language
D. backup
满分：4 分
12. ( ), difference between the lowest and highest frequencies transmitted in a particular channel or system.
A. Amplitude
B. Bandwidth
C. Bridge
D. Network
满分：4 分
13. ( ) also called a program, is the series of computer language coded instructions that tells the computer how to perform tasks.
A. Software
B. Hardware
C. Compiler
D. Interpreter
满分：4 分
14. A ( ) is a highly intelligent device that supports connectivity between both like and unlike LANs,and between LANs and WANs or MANs.
A. router
B. repeater
C. switch
D. bridge
满分：4 分
15. ( ) is indicated by the height of a wave within a given period of time.
A. Amplitude
B. Frequency
C. Analog signals
D. Digital signals
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16. ( ) 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.
A. Amplitude
B. Frequency
C. Analog signals
D. Digital signals
满分：4 分
17. ( ) is a device that functions as both a router and a bridge.
A. Repeater
B. Switch
C. Gateway
D. Brouter
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18. ( ), software used in corporate networks (intranets and extranets) to prevent unauthorized people from accessing the network.
A. Firewall
B. Modem
C. Hypertext
D. TCP
满分：4 分
19. In a ( ) network, all microcomputers and other communication devices are connected to a continuous loop.
A. bus
B. star
C. tree
D. ring
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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).
A. bus
B. star
C. tree
D. ring
满分：4 分
大工15春《专业英语（计算机英语）》在线测试3
试卷总分：100 测试时间：--
单选题 判断题
一、单选题（共 20 道试题，共 80 分。）V 1. ( ), which stands for Motion Picture Experts Group (MPEG) Layer 3, is rapidly becoming the standard for music transmission via Internet.
A. MP3
B. MP4
C. JPEG
D. AVI
满分：4 分
2. ( ), the process of changing plaintext data into enciphered text through an algorithm.
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
满分：4 分
3. ( ) (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.
A. JPEG
B. MPEG
C. MIDI
D. none of the above
满分：4 分
4. ( ) 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.
A. FTP
B. WWW
C. Telnet
D. NSFNET
满分：4 分
5. ( ) 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.
A. Internet
B. WWW
C. ARPANET
D. ISP
满分：4 分
6. Which one is a word processing and text editing tool?( )
A. Photoshop
B. Word
C. Extreme 3D
D. Premiere
满分：4 分
7. ( ), referring to a person who breaks into computer systems for the challenge or steal computer resources or corrupt a computer's data.
A. Hacker
B. Password
C. DES
D. Authenticate
满分：4 分
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.
A. Hacker
B. Password
C. DES
D. Authenticate
满分：4 分
9. ( ) ,conversion of either encoded or enciphered text into plaintext.
A. Decrypt
B. Encryption
C. Authenticate
D. Hacker
满分：4 分
10. ( ) is the messages, usually text, send from one person to another via the Internet.
A. TCP/IP
B. Telnet
C. FTP
D. E-mail
满分：4 分
11. 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.
A. ARPANET
B. Apple
C. Microsoft
D. None of the above
满分：4 分
12. ( ), technological and managerial procedures applied to computer systems to ensure the availability, integrity and confidentiality of information managed by the computer system.
A. Computer Security
B. Digital signatures
C. Computer virus
D. none of the above
满分：4 分
13. 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.
A. Internet
B. WWW
C. ARPANET
D. ISP
满分：4 分
14. ( ) is a computer technology that creates three dimensional real illusion in an artificial world.
A. Vector image
B. Bitmap
C. JPEG
D. Virtual Reality
满分：4 分
15. ( ), executable code that, when run by someone, infects other executable code in a computer.
A. Computer Security
B. Digital signatures
C. Computer virus
D. none of the above
满分：4 分
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.
A. JPEG
B. MPEG
C. MIDI
D. none of the above
满分：4 分
17. ( ), the process of compressing a file such that,after being compressed and decompressed, it matches its original format bit for bit.
A. Lossy compression
B. Lossless compression
C. Bitmap
D. Vector image
满分：4 分
18. ( ) 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.
A. Animation
B. WAV
C. Multimedia
D. none of the above
满分：4 分
19. ( ), the process of compressing a file such that some data is lost after the file is compressed and decompressed.
A. Lossy compression
B. Lossless compression
C. Bitmap
D. Vector image
满分：4 分
20. ( ) is a way of transferring files over the Internet from one computer to another.
A. Internet
B. FTP
C. E-mail
D. ISP
满分：4 分