Computer Science 9608: Hardware Topical Past Paper Questions

4 Draw the logic circuit for the logic expression: X = (A AND B) OR (NOT ((A AND C) AND (B OR C))) [6]

Consider the following logic circuit. (a) Complete the truth table for the logic circuit. (b) Identify one logic gate not used in the logic circuit shown. Complete the truth table for this logic gate with the inputs A and B. Logic gate

(a) Draw a logic circuit to represent the logic expression: X = NOT (A OR C) OR (A AND NOT B) [5] (b) Complete the truth table for the logic expression: X = NOT (A OR C) OR (A AND NOT B)