Intro to Logic Gates/Switches

 


Normally Open Switch

normally open switch
inputoutput
incontrolout
000
010
100
111
control
01
in000
101
Can be used to implement an AND gate.

Normally Closed Switch

normally closed switch
inputoutput
incontrolout
101
110
inputoutput
incontrolout
000
010
101
110
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?

OR gate implemented as switches
inputoutput
inABout
1000
1011
1101
1111

Alyce Brady, Kalamazoo College