Thomas J. Watson, Sr.

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Thomas J. Watson, Sr.

A salesman who served as president of IBM from 1914 to 1956. He began by selling organs and pianos to farmers in New York in the 1890s. He became interested in selling for technology companies when he purchased a cash register for his butcher shop. As head of IBM, he cornered 90% of the market for tabulating machines in the United States. During his tenure, IBM also began research into what became analog computers. He lived from 1874 to 1956.