Digital Electronics/Logic Gates Summary

The table below summarize all the Basic Digital Gates and their characteristics

Basic Logic Gates	Symbol	Mathmatical Formula	Truth Table	Constructions
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
NAND		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
NOR		Q = NOT (A + B)	A B Q 0 0 1 0 1 0 1 0 0 1 1 0
XOR		Q = A + B	A B Q 0 0 0 0 1 1 1 0 1 1 1 0
XNOR		Q = A + B	A B Q 0 0 0 0 1 1 1 0 1 1 1 1