BSc CSIT (TU) Science Digital Logic (BSc CSIT, CSC116) Question Paper 2079
This is the official BSc CSIT (TU) (Science stream) Digital Logic (BSc CSIT, CSC116) question paper for 2079, 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 2079 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Perform the following conversions: (i) (375)8 to binary, (ii) (1AF)16 to decimal, (iii) (101101)2 to Gray code, (iv) decimal 89 to BCD.
Reduce the following function using a K-map and draw the logic diagram: F(A,B,C,D) = Sum(0,1,2,3,5,7,8,9,11,14).
What is a sequential circuit? Explain the design procedure of a clocked synchronous sequential circuit with an example.
Section B: Short Answer Questions
Attempt any EIGHT questions.
Explain the excess-3 code and its application.
Simplify F = (A + B)(A + C) using Boolean theorems.
Explain the working of a half subtractor with a truth table.
Realize the EX-OR gate using NAND gates only.
Explain the working of a 8-to-1 multiplexer.
Differentiate between a register and a counter.
Explain the conversion of a JK flip-flop into a D flip-flop.
What is a ring counter? Explain its operation.
Write short notes on hazards in combinational circuits.