Definitions:

1. a circuit in a computer that fires only if only one of its inputs fire. NOUN
   • The XOR circuit is useful in parity checkers, where it helps detect errors in transmitted data.
2. Type of digital logic gate that outputs true or high high signal level only when the number of true or high signal level inputs is odd. NOUN
   • When designing circuits, enfineers use XOR circuit or gates for logical functions that require a true output when inputs are different.

Synonyms:

• exclusive or circuit
• X-OR circuit