Dr. Herman Hollerith (February 29, 1860 - November 17, 1929), a statistician at the US census bureau, was an American businessman, inventor, who developed the electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting His invention of the punched card tabulating the machine, patented in 1884,
marks the beginning of the era of semiautomatic data processing systems Hollerith founded a company Tabulating Machine Company (TMC) that was amalgamated with three other companies (Bundy Manufacturing Company, International Time Recording Company, and the Computing Scale Company of America) to form the Computing-Tabulating-Recording Company (CTR) in 1924, the same company was renamed
"International Business Machines (IBM) and became one of the largest and most successful companies of the 20th century.
Hollenth is regarded as one of the seminal figures in the development of the data processing system The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S Census.
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