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| 1880 Herman Hollerith an American inventor, uses his tabulating machine to process the 1880 census data. Hollerith later forms a company to manufacture and sell the machine. Hollerith' company grew and merged with other companies to eventually become IBM. Hollerith used punched cards in his tabulating machine These later became refined and came to be known as "IBM cards", or simply "punch cards." |
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| 1911 (July 5) The Computing-Tabulating-Recording Company (CTR) is founded. The CTR was formed from the "Tabulating Machine Company" (founded by Herman Hollerith and sold in 1911), the "Dayton Scale Company" (Dayton, Ohio), the "International Time Recording Company" (Endicott, New York) and the Bundy Manufacturing Company (Endicott, New York). |
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