Herman Hollerith, the Inventor of Computer Punch Cards

Herman Hollerith designed a machine to tabulate census data more efficiently than by traditional hand methods. It became the computer punch card.

HNF - Herman Hollerith (1860-1929)

1886: Punch card data

1889 Herman Hollerith Census Machine by TMC which became IBM

Hollerith ICT Hand-operated Key Punch - Peripheral - Computing History

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Hollerith applies for punch card counting machine patent, June 8, 1887 - EDN

National Museum of American History

Herman Hollerith, the Inventor of Computer Punch Cards

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National Museum of American History

Early Card Punch Machines

1880 Herman Hollerith tabulating machine. Used for the 1880 census and led directly to the IBM Corporation.