Herman Hollerith made a major contribution to the development of the modern digital computer with his tabulating machine. An early model of his invention was first used in 1890 to tabulate medical statistics gathered by the United States Army. That same year, the United States Census Bureau adopted Hollerith's tabulating system for its 1890 census. By the time the 1900 census was completed using a revised model, the tabulating machine had saved American taxpayers $5 million and did in less than two years what would have taken eight years of hand tabulating. This was the beginning of modern data processing. The company Hollerith formed to manufacture the tabulating machine eventually became International Business Machines (IBM).
Herman Hollerith was born February 29, 1860, in Buffalo, New York. His parents, George and Franciska Hollerith, were German immigrants. After attending City College of New York, Hollerith continued his studies at the Columbia University School of Mines.
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