Which of the following gives a reversible ope | vedclass

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(B) logic gate is considered reversible if the input data can be uniquely recovered from the output data.In a $NOT$ gate,the output is the complement

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(B) logic gate is considered reversible if the input data can be uniquely recovered from the output data.In a $NOT$ gate,the output is the complement of the input $(Y = \bar{A})$. If the output is $0$,the input must have been $1$,and if the output is $1$,the input must have been $0$. Thus,the input can be uniquely determined from the output.Other gates like $OR$,$NOR$,$AND$,and $NAND$ have two inputs,meaning there are $2^2 = 4$ possible input combinations,but only $2$ possible output states ($0$ or $1$). Since multiple input combinations can produce the same output,these gates are not reversible.

Which of the following gives a reversible operation?

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