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

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

The outpout A when all three inputs are first high and then low 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.

The output of a NOT gate when its input is 0

The output of the two-input OR gate is high

The output of a two-input AND gate is high