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Reduced instruction set computer

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Definition Edit

Reduced instruction set computer (RISC) represents a CPU design strategy emphasizing the insight that simplified instructions that "do less" may still provide for higher performance if this simplicity can be utilized to make instructions execute very quickly.

Overview Edit


a technology pioneered by IBM in the 1970s and further developed by researchers with funding from DARPA's Very Large Scale Integrated Circuit Program, which ran until the early 1980s.[1]

The term is being slowly replaced by the more descriptive load-store architecture. Well known RISC families include Alpha, ARC, ARM, AVR, MIPS, PA-RISC, PIC, Power Architecture (including PowerPC), SuperH, and SPARC.

References Edit

  1. Making IT Better: Expanding Information Technology Research to Meet Society's Needs, at 21.

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