Fundamental Digital Gates

There are 5 basic digital gates used to perform Logic Operation and these are called a Buffer, NOT, AND, OR, XOR

Basic Logic Gates	Symbol	Mathmatical Formula	Truth Table
Buffer		Q = A	A Q 0 0 1 1
NOT		Q = NOT A	A Q 0 1 1 0
AND		Q = A . B	A B Q 0 0 0 0 1 0 1 0 0 1 1 1
OR		Q = A + B	A B Q 0 0 0 0 1 1 1 0 1 1 1 1
XOR		Q = A + B	A B Q 0 0 0 0 1 1 1 0 1 1 1 0