Logic Circuit: NOT Circuit

The NOT circuit is also called the logic negation circuit.

When 1 is input to A, the output becomes 0, when 0 is input to A, the output becomes 1.
In this way, the input signal inverted and output.

The schematic can be expressed by the MIL symbol as shown in the right figure.

A NAND circuit is configured by combining the NOT circuit with the AND circuit.
A NOR circuit is configured by combining the NOT circuit with the OR circuit.