Computer Science 7 Logic Gates

NOT

Inverts 1 and 0.

AND

Takes two bits as inputs, only gives out 1 if both inputs are 1, 0 in all other cases.

OR

Takes two bits as inputs, gives out 1 if one of both inputs are 1, 0 only if both inputs are 0.

NAND

AND gate followed by a NOT gate, so all results of AND are inverted. Gives out 1 in all cases except when both inputs are 1.

NOR

OR gate followed by a NOT gate, so all results of OR are inverted. Gives out 0 in all cases except when both inputs are 0

XOR

Outputs 1 when exactly one of its inputs is 1. Two 0 or two 1 give 0.

XNOR

Inverted XOR gate, outputs 0 when exactly one of its inputs is 1. Two 0 or two 1 give 1.