Logic Gates

Control output from inputs

They are a series of transistors to control and output

AND

Truth Table

A	B	Output
1	1	1
1	0	0
0	1	0
0	0	0

OR

Truth Table

A	B	Output
1	1	1
1	0	1
0	1	1
0	0	0

NOT

Truth Table

A	B	Output
1	0
0	1

NAND

Truth Table

A	B	Output
0	0	1
0	1	1
1	0	1
1	1	0

NOR

Truth Table

A	B	Output
0	0	1
0	1	0
1	0	0
1	1	0

Half-Adder

Truth Table

A	B	NOT A	NOT B	A & NOT B	NOT A & B	SUM	CARRY
0	0	1	1	0	0	0	0
0	1	1	0	0	1	1	0
1	0	0	1	1	0	1	0
1	1	0	0	0	0	0	1