大工20春《专业英语（计算机英语）》在线作业123（答案）

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大工20春《专业英语（计算机英语）》在线作业1
试卷总分:100  得分:100
一、 (共 10 道试题,共 50 分)
1.The first generation computers were huge,slow,expensive,and often undependable.
答案:正确

2.The transistor computer did not last as long as the vacuum tube computer lasted, but it was less important in the advancement of computer technology.
答案:错误

3.Transistors were a tremendous breakthrough in advancing the computer.
答案:

4.However what really triggered the tremendous growth of computers and its significant impact on our lives is the invention of the microprocessor.
答案:

5.It wasn't until the 1980's that people began buying computer for personal use.
答案:

6.A computer can be broken down into three distinct categories, namely output,input and CPU.
答案:

7.The term 'output' consists of all components that display words and graphics so that a person can see them.
答案:

8.The keyboard is classified as a form of output.
答案:

9.Mouse belongs to input.
答案:

10.CPU is the soul of a computer.
答案:

二、单选题 (共 10 道试题,共 50 分)
11.The ENIAC used thousands of( ),which took up a lot of space and gave off a great deal of heat just like light bulbs do.
A.vacuum tubes
B.integrated circuits
C.chips
D.switches
答案:

12.In 1947 three scientists, John Bardeen, William Shockley, and Walter Brattain working at( )invented the transistor computer.
A.Baidu
B.Microsoft
C.AT&T's Bell Labs
D.Yahoo
答案:

13.Most electronic devices today use some form of( )placed on printed circuit boards.
A.trigger
B.kit
C.microprocessor
D.integrated circuits
答案:

14.The fourth generation computers can be characterized by both the jump to monolithic integrated circuits and the invention of( ).
A.microprocessor
B.transistor
C.chip
D.circuit
答案:

15.The( )led to the invention of personal computers,or microcomputers.
A.microprocessor
B.transistor
C.chip
D.circuit
答案:

16.The software and hardware components of a computer( ).
A.function independently
B.can never be coordinated
C.rely on each other and support each other
D.none of the above
答案:

17.Accessing data from a floppy disk is called( )data.
A.printing
B.reading
C.writing
D.listening
答案:

18.A location in RAM memory is accessed by its( )
A.contents
B.address
C.storage unit
D.storage capacity
答案:

19.RAM is a( )storage.
A.permanent
B.flash
C.temporary
D.expansion
答案:

20.Computers can only recognize( )signals.
A.analog
B.infrared ray
C.light
D.digital
答案: