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Herman Hollerith (February 29, 1860 – November 17, 1929) was an American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.
Learn how Hollerith invented the punch card tabulating machine in 1888, which revolutionized the 1890 census and led to the founding of I.B.M. The device used punch cards, mercury contacts and dials to count and sort data.
Hollerith’s punched card tabulator, developed in the 1880s, eased the administrative burden of hand-counting the population in a country whose numbers were exploding.
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May 11, 2018 · Herman Hollerith developed a mechanical system of punch cards and electric sensing devices to process large amounts of data for the U.S. Census Bureau. His invention led to the formation of IBM and the modern digital computer.
Sep 5, 2023 · Learn about Herman Hollerith, the father of modern automatic computation, who invented the punched card and founded IBM. See his biography, patents, publications, and honors.
Herman Hollerith, American inventor of a tabulating machine that was an important precursor of the electronic computer. Hollerith’s machine recorded statistics by electrically reading and sorting punched cards that had been numerically encoded by perforation position.
Learn how Herman Hollerith invented the punched card for the 1890 US Census and how IBM developed and popularized it as a data storage device. Explore the evolution, uses and impact of the punched card on the Information Age.
