exclusive-OR gate

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An electronic logic gate whose output is logic 1 (true) only when any one of its inputs is logic 1 and all the others are logic 0 (false), otherwise the output is logic 0. It therefore implements the logical exclusive-OR operation and has the same truth table; it is thus sometimes known as a nonequivalence gate. Like the exclusive-NOR gate it can be used as a simple digital comparator. The diagram shows the circuit symbol and truth table for a two-input gate.

Exclusive-OR gate. Two-input EXOR gate, circuit symbol and truth table

Subjects: Computing.

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