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Ken Shirriff /
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2024-04-25 17:34:39

Ken Shirriff on Nostr: Punch cards used to be a key part of computing. The IBM 1402 Card Reader/Punch (1959) ...

Punch cards used to be a key part of computing. The IBM 1402 Card Reader/Punch (1959) could read or punch hundreds of cards a minute. But the punch at https://twitter.com/ComputerHistory stopped punching the first 16 columns. An explanation of the punch unit and how we fixed it... 1/9

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