Tuesday, November 30, 2010


Herman Hollerith was working at the US Census Bureau in 1884 when he filed his first patent entitled “Art of Compiling Statistics”, US 395,782.   It was a method is using punch cards to electronically tabulate the census data.  The census process, which generally took 8 years to complete, was finish in 1 year using Hollerith’s method.  He founded the Tabulating Machine Recording Co. to build these machines for the Census Bureau. In 1911 three other companies merged with him to form the Computing Tabulating Recording Co which in 1924 became the International Business Machine, or IBM. IBM is the assignee of more patents than any other US company.

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