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See also: noop and nööp



Short for no operation (NOP), common assembly language instruction.


no-op (plural no-ops)

  1. (computing) An instruction or operation that has no significant effect.
    • 1991, Graham C. E. Winn, OS/2 Presentation Manager GPI:
      Points may be coincident and the number of specified points can be zero, in which case the function is a no-op.
    • 1999, Donald Knuth, MMIXware: A RISC Computer for the Third Millennium:
      A JMP instruction qualifies as a no-op in this sense.
  2. (Can we verify(+) this sense?) (computing, slang, pejorative) A co-worker who does not deliver a useful contribution.
    His CV was impressive, but he turned out to be a no-op.