BSc CSIT (TU) Science Digital Logic (BSc CSIT, CSC116) Question Paper 2074
This is the official BSc CSIT (TU) (Science stream) Digital Logic (BSc CSIT, CSC116) question paper for 2074, 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 2074 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Convert the decimal number 725.625 into binary, octal and hexadecimal. Also explain the BCD and Gray code with examples.
State and prove De Morgan's theorems. Simplify the Boolean expression F = A'B + AB' + AB using a K-map and draw its logic circuit.
What is a flip-flop? Explain the working of SR, JK, D and T flip-flops with their truth tables and characteristic equations.
Section B: Short Answer Questions
Attempt any EIGHT questions.
Perform binary addition and subtraction of 1101 and 1011 using 2's complement.
Explain the working of a half adder and a full adder with truth tables.
What is a multiplexer? Explain a 4-to-1 multiplexer with a block diagram.
Differentiate between combinational and sequential circuits.
Implement the logic function F(A,B,C) = Sum(1,3,5,7) using basic gates.
Explain the operation of a decoder with a 3-to-8 line decoder.
What is a register? Explain a shift register.
Explain the working of a ripple (asynchronous) counter.
Write short notes on universal gates.