Intro to Logic Gates/Switches

Normally Open Switch

input		output
in	control	out
0	0	0
0	1	0
1	0	0
1	1	1

		control
		0	1
in	0	0	0
	1	0	1

Can be used to implement an AND gate.

Normally Closed Switch

input		output
in	control	out
1	0	1
1	1	0

input		output
in	control	out
0	0	0
0	1	0
1	0	1
1	1	0

If we provide constant input, so the output becomes a function of the "control" only, this can be used to implement a NOT gate.

What about an OR gate?

input			output
in	A	B	out
1	0	0	0
1	0	1	1
1	1	0	1
1	1	1	1