Punch Card Technology

The designers needed a way to enter data into the ENIAC. They chose a technology that had been around since the 1920's: the punched card. The IBM corporation had a well-established line of punch card readers and writers, and the ENIAC team was able to adapt them to work with the ENIAC as one form of input and output.

Punch cards were first invented by Jaquard in <some year>. He used the cards to control a loom. The Jaquard Loom was able to produce many fancy patterns of cloth. Jaquard even had a portrait of himself made out of cloth from one of his looms.

Hollerith used the idea of punched cards to improve the United States census of 1890.

The IBM corporation was selling punch-card tabulating equipment all over the world.

Be sure to try our Restored Punch Card Machines!

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