difference gate

== English == === Noun === difference gate (plural difference gates) (electronics) A logic gate whose output is TRUE when the two inputs are different; a Boolean logic XOR gate. ==== Usage notes ==== A difference gate, when the term is used to mean the XOR function, is not the same function as difference in set operations. The former is A B ¯ + A ¯ B {\displaystyle \scriptstyle A{\overline {B}}+{\overline {A}}B} while the latter is A B ¯ {\displaystyle \scriptstyle A{\overline {B}}}