Thomas John Watson, Sr. (1874) After rising from clerk to sales executive in the National Cash Register Co., Watson became president of the Computing-Tabulating-Recording Co., which made scales, time clocks, and tabulators that sorted information using punched cards—all forerunners of mainframe computers. Watson renamed the company International Business Machines Corp. (IBM) in 1924 and became its chairman in 1949, widening IBM's line to include electronic ...
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