EXAMSHARE

Western Delta University, Oghara Delta State

department of computer science
college of computing
western delta university

first semester examination 2023/2024 session

CSC301 - digital design time: 2hrs: 30mins

Question One and any other three (3) questions

  1. Question 1 (Compulsory) (25 marks)

    Using the Quine-McCuskey Algorithm method, minimise the following Boolean expression: F(A, B, C, D) = ∑m(4, 8, 10, 11, 12, 15) + d(9, 14) (25 marks)

  2. Question 2 (15 marks)

    1. Name three types of Logic gates and draw their truth table. (6 marks)
    2. State four Postulate of the Boolean Algebra (6 marks)
    3. Write short note on system design. (3 marks)

  3. Question 3 (15 marks)

    1. State the De Morgan's theorem. (5 marks)
    2. Draw a duality of gates arising from De Morgan's theorem. (5 marks)
    3. Write short on Application of Logic Circuits (5 marks)

  4. Question 4 (15 marks)

    1. Name five features of the Karnaugh map. (5 marks)
    2. Draw the AND-OR Circuit realization for minterm expresison. (5 marks)
    3. Draw the OR-AND Circuit realization for maxterm expression. (5 marks)

  5. Question 5 (15 marks)

    1. What is an encoder? What is the difference between an encoder and a decoder? (6 marks)
    2. What is a multiplexer? Explain the functionality of a multiplexer circuit? (5 marks)
    3. Logic design (4 marks)

  6. Question 6 (15 marks)

    1. What is a microprocessor?(4 marks)
    2. Explain parallel data transmission and differentiate it from serial data transmission. (7 marks)
    3. Write short notes on Circuit design (4 marks)