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Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?

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Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?

(a) Mouse

(b) Magnetic disk

(c) Visual display terminal

(d) Card punch

This question was addressed to me in examination.

Asked question is from Interface Circuits in division Input/Output Organisation of Computer Architecture

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Correct choice is (a) Mouse

To explain: In batch processing systems the processes are grouped into batches and they’re executed in batches.

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