KENDRIYA VIDYALAYA, B.E.G. PUNE -06
IST UNIT TEST
SUBJECT: COMPUTER SCIENCE
Time: 1 ½ Hours
Marks: 40
Class – XI
1). How is a compiler different from interpreter?
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2) What is the function of main memory? What are the measuring units of
memory?
2
3) What is the function of CPU in a computer system? What are its sub units?
2
4) What is the meaning of the term volatile primary memory? What can be done
to overcome the problems of volatility?
2
5) What are the advantages and disadvantages of using computers?
2
6) What is the significance of Recycle Bin? Is it possible to retrieve deleted
objects later? If so how?
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7) What is meant by the term multiprogramming and multitasking?
2
8) What is the difference between copying and moving files and folders?
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9) (i) Give procedure to create a new folder in Windows XP.
(ii) Give procedure for closing down the Windows XP.
10) What do you mean by Hardware and Software?
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11) What do you mean by Preemptive and Non – Preemptive scheduling
technique? Give two non – preemptive techniques in details
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12) Explain the concept of virtual storage technique describing both the
approach.
13) The operating system is called a resource manager. List four distinct
resources of the computer system. What are the general functions that the OS
performs for these resources?
14) Write a note on all five generation of computers discussing their
characteristics.
15) Write short note on evolution of computers. How are digital, analog and
hybrid computers different from one another?
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************************ BEST OF LUCK **************************
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