Tribhuvan University
Bachelor of Information Technology Management
Semester 2 · TU Board 2023
Course Title: Digital Logic (IT233)
Full Marks: 60Pass Marks: 30Time: 3 Hrs
Candidates are required to give their answers in their own words as for as practicable.
Group A
Brief Answer Questions(10 × 1 = 10)
- 1.1
What will be the value of x + xy according to Boolean rule?
- 2.1
Define Digital System.
Answer comingAlso asked in 2023
- 3.1
Prove any statement of Demorgan theorem for two variable using truth table.
- 4.1
What is asynchronous counter?
Answer comingAlso asked in 2024, 2023, Model question
- 5.1
Differentiate between positive edge triggering and negative edge triggering.
- 6.1
How the number of cell is determine in a K – map?
- 7.1
Define ROM.
- 8.1
Convert gray code: 1011 to binary.
Answer comingAlso asked in 2024
- 9.1
Define POS.
- 10.1
Define shift register.
Answer comingAlso asked in 2024
Group B
Short Answer Questions: (Attempt any FIVE Questions)(5 × 3 = 15)
- 11.3
Convert (2A31)₁₆ into decimal, binary and octal form.
Answer comingAlso asked in 2023
- 12.3
Realize the property of NOT, NOR and AND gate using NAND gate.
Answer comingAlso asked in 2024, 2023
- 13.3
Compute (-20)₁₀ + (+30)₁₀, using 2's complement method.
- 14.3
List out the design procedure of combinational circuit.
Answer comingAlso asked in Model question
- 15.3
Design 1 × 4 D- multiplexer.
View answerAlso asked in 2024, 2023, Model question
- 16.3
Write the expression in SOP for the following Karnaugh Map: AB/CD0001111000110101001×11××1110100×
Group C
Long Answer Questions: (Attempt any THREE Questions)(3 × 5 = 15)
- 17.5
Design MOD-120 Asynchronous counter.
Answer comingAlso asked in 2024, 2023, Model question
- 18.5
Design a circuit diagram for 3 – bit binary adder.
Answer comingAlso asked in 2023
- 19.5
What is bidirectional register? Explain with example.
- 20.5
Minimize the boolean function: ƒ(M,N,P,R) = ∑(0,3,5,7,9,10,12,15,) with don't care condition d(M,N,P,R) = ∑ (2,4,6,8) using K-map and design a circuit diagram with a simplified expression.
Group D
Comprehensive Answer / Case / Situation Analysis Questions(2 × 10 = 20)
- 21.10
Analyze the property of flip-flop which will have indeterminate state when set and reset inputs are "1" and illustrate the operational characteristics of flip-flop that solve the mention problem.
- 22.10
Design 8 × 3 Encoder. Analyze the number of don't care condition in the design of 8 × 3 encoder.
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