NOT gate
logic gate implementing negation / From Wikipedia, the free encyclopedia
A NOT gate (also often called Inverter) is a logic gate. Each NOT gate has only one input signal. Logically with NOT gates, the input and the output swap, so if you input 1 it outputs as 0; likewise if you input 0 it outputs as 1.The NOT gate negates the values of data or signal in its input. It will always output the opposite signal. Its main function is to interchange logic.
INPUT A | OUTPUT NOT A |
0 | 1 |
1 | 0 |
In the 20th century an inverter was often made of a discrete transistor with other components, or several inverters were packaged in an integrated circuit.