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22-Elec-A4 Digital Systems and Computers: December 2017

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Boolean minimisation and hazards
  2. Question 2 Prime implicants and minimal SoP
  3. Question 3 Multilevel function and NOR-only synthesis
  4. Question 4 Two-bit subtractor and HS/FS cascade
  5. Question 5 RS flip-flop finite-state machine
  6. Question 6 Timer interfaces and the interrupt process

Start with Question 1 →

National Exams — 16-Elec-A4 Digital Systems & Computers — December 2017. Closed book; 3 hours; six questions of 12 marks each, of which any five constitute a complete paper. All six are solved below as a study resource. Permitted aids: Casio or Sharp approved calculator; a sheet of Boolean identities and a flip-flop excitation table are supplied with the paper.

Reference texts. M. Morris Mano & M. D. Ciletti, Digital Design (Pearson); C. H. Roth & L. L. Kinney, Fundamentals of Logic Design (Cengage); J. F. Wakerly, Digital Design: Principles and Practices (Pearson); Hamacher, Vranesic & Zaky, Computer Organization (McGraw-Hill) for the interrupt / timer material.