DISTANCE EDUCATION
B.Sc. DEGREE EXAMINATION, MAY 2017.
Information Technology
DIGITAL COMPUTER FUNDAMENTALS
(2007 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20 100)
1. Convert the following binary numbers to octal
110001 and
1000111.
Convert the following hexadecimal numbers to
decimal
8A3 and
D70.
2. Perform complement for the following
11001 10011 and
1001 1101
State and explain the De Morgan's theorem.
3. Plot the expression on the K-map

Explain the de-multiplexer in detail.
Sub. Code
13
DE-219
2
SER
4. Convert the decimal number 412.42 to binary, octal and
hexadecimal system.
5. Design and explain the half adder and full adder with
truth table.
6. Design and explain the working principles of D flip
flop.
Explain parallel binary adder.
7. Explain the functions of shift register in detail.
Describe RAM organization in detail.
8. What are the features of Central Processing Unit?
Explain.
Write short notes on bubble memory and flash
memory.