BSc CSIT (TU) Science Digital Logic (BSc CSIT, CSC116) Question Paper 2078
This is the official BSc CSIT (TU) (Science stream) Digital Logic (BSc CSIT, CSC116) question paper for 2078, as set in the regular annual examination. It carries 60 full marks and a time allowance of 180 minutes, across 12 questions. On Kekkei you can attempt this Digital Logic (BSc CSIT, CSC116) past paper online with a timer, get instant AI feedback and step-by-step solutions, and track the topics where you lose marks — completely free. Whether you are revising for your BSc CSIT (TU) Digital Logic (BSc CSIT, CSC116) exam or solving previous years' question papers, this 2078 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Explain the signed magnitude, 1's complement and 2's complement number representations with examples. Perform (-25) + (15) using 8-bit 2's complement.
Simplify F(A,B,C,D) = Sum(1,3,7,11,15) + d(0,2,5) using a K-map and implement using NOR gates.
Explain the working of a 4-bit universal shift register with a neat block diagram.
Section B: Short Answer Questions
Attempt any EIGHT questions.
Convert (101101.101)2 into decimal and octal.
State and prove the consensus theorem.
Explain the working of a 2-to-4 line decoder.
Implement a 4-to-1 multiplexer using logic gates.
Differentiate between Moore and Mealy machines.
Explain the operation of a T flip-flop with its excitation table.
What is a BCD adder? Explain its working.
Design a mod-5 counter using JK flip-flops.
Write short notes on race-around condition.