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OR circuit

[awr] /ɔr/
noun, Computers.
a circuit that is energized when any of its inputs are energized.
Also called OR gate.
Origin of OR circuit
1950-55; so called from the disjunctive operation of such circuits; see or1 ( def 6 ) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for or gate

OR circuit

(computing) a logic circuit having two or more input wires and one output wire that gives a high-voltage output signal if one or more input signals are at a high voltage: used extensively as a basic circuit in computers Compare AND circuit, NAND circuit
Word Origin
C20: so named from its similarity to the function of or in logical constructions
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
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