Basic Gate 1. AND Gate

1. AND Gate:
          Symbol:
                     

It has two input A and B and has only one output Y=A*B.

Truth Table for Two Input

Input		Output
A	B	Y=A*B
0	0	0
0	1	0
1	0	0
1	1	1

Truth Table for Three Input

Input			Output
A	B	C	Y=A*B
0	0	0	0
0	0	1	0
0	1	0	0
0	1	1	0
1	0	0	0
1	0	1	0
1	1	0	0
1	1	1	1