Keyboard or keypad driven computerized data entry. Prior to PCs, to issue commands or store data in the era of mini or mainframe computers, key punching was actual punching of holes in punch cards or paper tape.
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Keyboard or keypad driven computerized data entry. Prior to PCs, to issue commands or store data in the era of mini or mainframe computers, key punching was actual punching of holes in punch cards or paper tape.
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