Karnataka State Open University (KSOU) 2010-1st Sem B.Sc Information Technology Introduction to Digital Electronics -- Question Paper
I Semester B.Sc. (I.T.) Examination, June/July 2010 INTRODUCTION TO DIGITAL ELECTRONICS
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Time : 3 Hours Max. Marks : 75
PART - A
Answer all questions : (10x2+5x1=25)
1. What is Gate ? Mention the different types of gates.
2. Why Boolean Algebra is needed for the computer system ?
3. Construct an AND gates using NAND gates.
4. What is the significance of using De Morgans Theorems ?
5. Write any two applications of Flip-Flops.
6. Define Synchronous Counters.
7. Differentiate between Diodes and Transistors.
8. What do you mean by Digital Amplification ?
9. What is Amplifier ?
10. Define the concept of Sampling Rate.
11. Explain the following terms :
a) Boolean Algebra
b) Commutative laws
c) Truth table
d) Timing Diagrams
e) Multiplexers.
1. Explain the three Boolean operators with an examples.
2. State and prove De-Morgans theorem.
3. Explain De multiplexers with neat block and circuit diagrams of a 1-of-4 Demultiflexers.
4. Discuss the specification for the four bit binary adder.
5. Explain the Bipolar junction transistors.
6. How can you achieve amplification using a BJT ?
7. Explain the functioning of a FET and give out some digital application of FET.
8. Explain the characteristics of an OP-Amp.
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