The outpout A when all three inputs are first high and then low respectively, be

The output A when all three inputs are first high and then low respectively, be

The output y, when all three inputs are first high and then low, will respectively be

The output y, when all three inputs are first high and then low, will respectively be

It is required to design a (two -input) logic gate, using an appropriate number, of : (a) NAND gates that gives a 'low' output only when both the inputs are 'low'. (b) NOR gates that gives a 'high' output only when both the inputs are 'high'. Draw the logic circuits for these two cases and write the truth table, corresponding to each of the two designs.

It is required to design a (two -input) logic gate, using an appropriate number, of : (a) NAND gates that gives a 'low' output only when both the inputs are 'low'. (b) NOR gates that gives a 'high' output only when both the inputs are 'high'. Draw the logic circuits for these two cases and write the truth table, corresponding to each of the two designs.

What is the output Y in the following circuit , When all the three inputs A,B, and C are first 0 and then 1?