arbiter(redirected from Arbitor)
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a person empowered to judge in a dispute; referee; arbitrator
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A computer unit that determines the priority sequence in which two or more processor inputs are connected to a single functional unit such as a multiplier or memory.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.