The logic of a $NOR$ gate is that .......

What is a logic gate?

In a digital circuit for three input signals $(A, B, \text{ and } C)$, the final output $(Y)$ should be such that for inputs:
| $A$ | $B$ | $C$ |
|---|---|---|
| $0$ | $0$ | $0$ |
| $0$ | $0$ | $1$ |
| $0$ | $1$ | $0$ |
the output $(Y)$ should be $0$, and for all other cases, it should be $1$. Which of the following digital circuits will give such output?

The truth table for the given logic circuit is: (Inputs $A, B$ and Output $E$)

The logic circuit is shown below:

$A$	$B$	$Y$
$0$	$0$	$1$
$0$	$1$	$0$
$1$	$0$	$0$
$1$	$1$	$1$

To obtain the given truth table,which logic gate should be placed at $G$?

Identify the equivalent logic gate represented by the given circuit.