Computer Science - Computer Fundamentals

46. 

Which most popular input device used today for interactive processing & for the on line entry of data for batch processing.

A. Mouse
B. Magnetic disk
C. Visual display terminal
D. Card punch
E. None of the above

Answer: Option C

Explanation:

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47. 

A fully functional computing device containing all the elements of a computer which is built around a MICROPROCESSOR is known as

A. Machine-in-built computer
B. Super computer
C. Micro computer
D. Mini computer
E. None of the above

Answer: Option C

Explanation:

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48. 

There are historical evidences to prove that abacus was first used in

A. India
B. Japan
C. China
D. Indonesia
E. None of the above

Answer: Option C

Explanation:

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49. 

A class of random access memory that requires periodic servicing in order for the contents to remain valid is

A. Static RAM
B. Dynamic RAM
C. PROM
D. EPROM
E. None of the above

Answer: Option B

Explanation:

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