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A Logic Gate is a device that:

implements a boolean function (true or false)
and therefore implement binary operations.

It has:

two binary inputs with the value on or off (ie a bit)
one binary output with the value on or off. (ie a bit)

Articles Related

Type

NAND

When both of the NAND gates inputs are on, the output is off. Otherwise, the output is on.

And, Or, Xor

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