IBM 513
The IBM 513 Reproducing Punch (photo) was a card punching machine developed by IBM. The machine could perform these functions:
- Reproducing all or part of the data on a deck of punched cards.
- Gang punching—copying punched information from a master card.
- Summary punching—punching a total or new balance card amounts which have been accumulated in the accounting machine.
- Mark sensing—the operation by which information recorded in the form of pencil marks is turned into punches on the cards.
Mark sensing allowed a person to enter data to be used in punched-card data processing without using a keypunch machine. It was used for tasks such as recording long distance calls or electric meter readings.
References
- IBM (1959). IBM Automatic Punches (PDF). D24-1014-0.
- IBM (October 1959). IBM Reference Manual: 513, 514 Reproducing Punches (PDF). A24-1002-2.
External links
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