A machine that punches holes into a card to then be read by other hardware device and interpreted as data. In the past, this allowed businesses and governments to store and input data. Today, the card punch is not often used, but some businesses that have relied on these in the past may still use them to get access old information. The picture shows an example of a punch card machine.

CHAD, Hardware terms, Punch card, Punch tape

  • When was the first computer invented?
  • Computer History