Question

Draw the logic gate diagram for 2-input AND gate using NOR gates only. Show the expression at each step.

Answer 1

• First NOR gate (Input A): X = `bar(A + A) = barA`
• Second NOR gate (Input B): Y = `bar(B + B) = barB`
• Third NOR gate (Final Output Q): Q = `bar(X + Y) = bar(barA + barB)`
• Simplified Result: Q = A⋅B