Cocke, John(1925– ) electrical engineer; born in Charlotte, N.C. Working at International Business Machines' Thomas J. Watson Research Center (1956), he invented RISC, the Reduced Instruction-Set Computer (1974–75). RISC technology enabled telephone-switching networks to handle 12 million instructions per second. His major research contributions were in systems architecture, hardware design, and program optimization.
The Cambridge Dictionary of American Biography, by John S. Bowman. Copyright © Cambridge University Press 1995. Reproduced with permission.