Truth Tables

The inputs and outputs of logic gates such as the NAND and NOT (Inverter) gates shown earlier can be expressed in something called a truth table (from The Art Of Electronics, Paul Horowitz, Winfield Hill, ISBN: 0-521-37095-7):

NAND

A

B

Q

0

0

1

0

1

1

1

0

1

1

1

0

NOT

A

Q

0

1

1

0