April 21, 2014 12:00 AM

Tom Eblen: IBM retiree tells how he helped invent word processing in Lexington

Leon Cooper was watching "Jeopardy" earlier this year when an answer caught his attention: "In the 1960s, this firm introduced the first word processor, the MT/ST, based on its Selectric typewriter." Cooper, 86, knew the question better than anyone. It was "What is IBM?"

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