CS302 (Digital Logic Design) Paper Review ? 15 June 2026 Overall paper was easy to moderate. Many concepts were theory-based and some short conceptual questions appeared. Questions I remember: Binary value of 111011 ? convert to decimal. Gray Code is different from Binary Code because? Decimal to BCD encoder ? number of outputs. Difference / expression related to POS and SOP. Decimal to BCD: Inputs 9 and 3 are both high ? Is it a valid BCD code? Given logic expression X = A? B ? draw circuit diagram and truth table. Binary division question (long division in binary). Expression simplification / Boolean expression. BCD Adder concept. Output of AND gate is 1 when all inputs are 1. Digital systems are designed to work with two voltage levels. Signed Magnitude representation (where n represent