A logical bitwise operator. NOR is a binary operator meaning it takes two inputs. The symbol for a NOR gate is the same as an OR gate with a dot a the front for negation.

The gate looks like this

\-\
A---\ \
| |0----Result
B---/ /
/-/

The truth table is below.

A B Result

1 1 0

1 0 0

0 1 0

0 0 1