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

Which most popular input device used today for interactive processing

1.	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» D. Card punch

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

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