Keywords

#punched_card

Punched card

Paper-based recording medium

A punched card is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines.

Thu 19th

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Punched card Punched card sorter Punched card input/output Computer programming in the punched card era Card reader Lace card Ballot Unit record equipment Voting machine Punched tape
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