BSc CSIT (TU) Science Digital Logic (BSc CSIT, CSC116) Question Paper 2081
This is the official BSc CSIT (TU) (Science stream) Digital Logic (BSc CSIT, CSC116) question paper for 2081, 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 2081 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Explain the multiplexer and design a 4-to-1 multiplexer. Implement the function F(A,B,C) = Sum(1,2,6,7) using an 8-to-1 multiplexer.
What is a ripple counter? Explain the working of a 4-bit binary ripple counter with a timing diagram.
Explain the working of a 3-to-8 line decoder with a logic diagram and implement a full adder using it.
Section B: Short Answer Questions
Attempt any EIGHT questions.
Convert (1011.011)2 into decimal and hexadecimal.
State and prove the absorption law of Boolean algebra.
Simplify the expression F(A,B,C) = Sum(0,2,4,5,6) using a K-map.
Explain the working of a full adder with a truth table.
Realize the NOT, AND and OR gates using NOR gates only.
Differentiate between combinational and sequential logic circuits.
Explain the working of a D flip-flop with a truth table.
Design a synchronous mod-4 up counter.
Write short notes on a serial-in serial-out (SISO) shift register.