If a, b, c, d are inputs to a gate and x is i | vedclass

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(A) By observing the time graph,we can analyze the relationship between inputs $a, b, c, d$ and output $x$.In the given graph,the output $x$ becomes h

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$OR$

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(A) By observing the time graph,we can analyze the relationship between inputs $a, b, c, d$ and output $x$.In the given graph,the output $x$ becomes high $(1)$ as soon as any of the inputs $(a, b, c, d)$ becomes high $(1)$.Specifically,at the beginning,all inputs are $0$ and the output $x$ is $0$.As soon as the first pulse occurs in input $d$,the output $x$ transitions to $1$ and remains $1$ for the rest of the duration,regardless of the states of other inputs.This behavior,where the output is $1$ if at least one input is $1$,is the characteristic truth table behavior of an $OR$ gate.Therefore,the gate is an $OR$ gate.

If $a, b, c, d$ are inputs to a gate and $x$ is its output,then,as per the following time graph,the gate is

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$A$ $B$ $Y$

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