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550 |
Introduced in 1930, the IBM 550 Automatic Interpreter was the first commercial IBM machine capable of sensing numerical data punched in cards and printing such data across the top of each card. The information to be printed could be placed in any sequence. The machine automatically interpreted at the rate of 75 cards a minute or 4,500 cards an hour. The feeding hopper had a capacity of 800 cards, and the stacker in which the interpreted cards were deposited had a capacity of 1,000 cards.
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