IBM Data Security and Data Processing Manuals June 1974
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International Business Machines Corporation
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International Business Machines Corporation was incorporated in New York State on June 16, 1911 under the name Computing-Tabulating-Recording Co. In 1922, Computing-Tabulating-Recording Co. purchased all of the shares of Deutsche Hollerith Maschinen Gesellschaft. In 1924 the official name of the company was changed to International Business Machines Corporation. In 1933, IBM CEO Thomas Watson ordered the merger of IBM subsidiaries in Germany (Optima, Degemag, Holgemag, Dehomag) under the name De...