Computer Science terms: X

2 of the Computer Science glossary’s terms, each with the part of the syllabus where you first meet it.

X

XNOR gatealso XNOR, exclusive NOR, equivalence gate: A logic gate whose output is 1 when its two inputs are equal (both 0 or both 1), equivalent to an XOR gate followed by a NOT gate.
Introduced in A1.2 Data representation and computer logic
XOR gatealso XOR, exclusive OR, EOR: A logic gate whose output is 1 when exactly one of its two inputs is 1, that is, when the inputs are different.
Introduced in A1.2 Data representation and computer logic