Ken Olsen

Digital Equipment Corporation. Olsen was an engineer at MIT's Lincoln Laboratory, where he worked on the Whirlwind and TX-0 transistor computers. In 1957 he and Harlan Anderson left to found DEC, and its PDP minicomputers brought interactive computing out of military labs and into university departments and factories at a fraction of mainframe prices. He was slow to take personal computers seriously and was pushed out in 1992. He died in 2011.