RISC

[risk]
noun
  1. reduced instruction set computer: a computer whose central processing unit recognizes a relatively small number of instructions, which it can execute very rapidly.
Compare CISC.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for risc

RISC

n acronym for
  1. reduced instruction set computer: a computer in which the set of instructions which it can perform has been reduced to the minimum, resulting in very fast data processing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012