Search results
Results From The WOW.Com Content Network
Hollerith 1890 tabulating machine with sorting box. [a] Hollerith punched card. 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.
1915 Powers Tabulating Machine Company establishes European operations through the Accounting and Tabulating Machine Company of Great Britain Limited. [26] [8]: 259 [27] 1919: Fredrik Rosing Bull, after studying Hollerith's machines, constructs a prototype 'ordering, recording and adding machine' (tabulator) of his own design. About a dozen ...
Herman Hollerith (February 29, 1860 – November 17, 1929) was a German-American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.
In the first commercial electronic data processing Hollerith machines were used to compile the data accumulated in the 1890 U.S. Census of population. [4] Hollerith's Tabulating Machine Company merged with two other firms to form the Computing-Tabulating-Recording Company, later renamed IBM. The punch-card and tabulation machine business ...
The British Tabulating Machine Company (BTM) was a firm which manufactured and sold Hollerith unit record equipment and other data-processing equipment. During World War II, BTM constructed some 200 "bombes", machines used at Bletchley Park to break the German Enigma machine ciphers.
Replica of Hollerith tabulating machine with sorting box, circa 1890. The "sorting box" was an adjunct to, and controlled by, the tabulator. The "sorter", an independent machine, was a later development.
The processing of the 1880 census data took so long (eight years) that the Census Bureau contracted Herman Hollerith to design and build a tabulating machine to be used for the next census. [8] [9] The 1880 census also led to the discovery of the Alabama paradox. Source: Table I, Population of the United States, by States and Territories [10]
Willy Heidinger, an acquaintance of Hollerith, licensed all of Hollerith's The Tabulating Machine Company patents in 1910, and created Dehomag in Germany. [4] In 1911 The Tabulating Machine Company was amalgamated (via stock acquisition) with three others, creating a fifth company, the Computing-Tabulating-Recording Company (CTR).