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46. Which most popular input device used today for interactive processing & for the online entry of data for batch processing.
A. Mouse
B. Magnetic disk
C. Visual display terminal
D. Card punch
E. None of the above
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. Supercomputer
C. Microcomputer
D. Minicomputer
E. None of the above
48. There is historical evidence to prove that abacus was first used in
A. India
B. Japan
C. China
D. Indonesia
E. None of the above
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
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