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1940 Sorting Farm and Ranch Punch Cards

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1940 Sorting Farm and Ranch Punch Cards

A battery of mechanical sorters prepare punch cards containing data from the 1940 Farm and Ranch Census for tabulation. The Census Bureau began using punch cards to sort and tabulate census data following the 1890 census. The machinery used to handle the punch cards grew steadily faster until computers and magnetic computer tape replaced punch cards in the 1960s.

Year: 1940

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Page Last Revised - January 7, 2022
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