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What are universal gates? Why are they called so?
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Universal gates :- Universal gates is a logic gate which can implement any boolean function without the need to use any other type of logic gates.

NAND and NOR are the only two Universal gates.


NAND gate :-

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NAND = AND + NOT


NOR gate :-

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NOR = OR + NOT


Note - AND, OR and NOT are only three which is the basis logical gates.

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