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... sky_4 The work of the tabulating machine revolved around punched cards: the operator first used a punch to create the punched cards, then a card reader to identify the information on the cards—mechanically carrying out data tallying and displaying the results in real-time on a counter dial.
Lastly, cards were deposited into a particular compartment of a sorting box, categorized, and stored for future use in data tabulation.
Once the invention was realized, and it proved capable ...
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