Universal Gate: NOR

Reference: http://www.electrical4u.com/universal-gate-nand-nor-gate-as-universal-gate/

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UNIVERSAL GATE: NOR

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We have discussed about NOR Gate on the previous article. Now coming to the topic of this article we are going to discuss about the Universal Gate. On the previous article, I discussed that NOR Gate is considered as UNIVERSAL GATE. Now NOR has the particular property that can create any logical Boolean expression if designed in a proper way. Now we will look at the operation of NOR gate as a universal gate.

As a review, this is the NOR Gate and its Truth table:

TRUTH TABLE:

 A B Y

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0 0 1
0 1 0
1 0 0
1 1 0   





 I will now show you how to make a NOT Gate out of a NOR Gate:

 

TRUTH TABLE 

A Y

0 1

1 0

AND Gate derived from a NOR Gate:

 

 

TRUTH TABLE:

A B Y 

0 0 0

0 1 0

1 0 0

1 1 1  

Lastly, an OR Gate derived from a NOR Gate :

TRUTH TABLE:

A B Y 

0 0 0

0 1 1

1 0 1

1 1 1  

That's it! You have now created a AND, NOT, and OR Gate out of a NOR Gate. Feel free to add questions on the comment section below.