$A$ typical integrated circuit $(IC)$ consisting of logic gates $\leq 1000$ is termed as

If the output of $Y = A \cdot \bar B$ is $Y = 1$,then the inputs are:

In the following logic circuit,the sequence of the inputs $A, B$ are $(0,0), (0,1), (1,0)$ and $(1,1)$. The output $Y$ for this sequence will be:

The circuit diagram shows a combination of logic gates. When inputs $P$ and $Q$ change to state $0$ with inputs $R$ and $S$ still at state $1$,the states of outputs $X$,$Y$ and $Z$ change to:

How many $NAND$ gates are used to form an $AND$ gate?

Which of the following represents the $NAND$ gate?