N A L A N D A O P E N U N I V E R S I T Y
Master of Computer Application Part-I
PAPER-II
(Computer Organization And Assembly Language Programming)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. Convert the following:
10001100)2 )10
(456)8 )16
(11001100110)2= )16
(A2CD)16
Explain the concept of ASCII code, EBCDIC code and BCD numbers.
2. Simplify the following using Karnaugh's map in terms of SOP and draw the circuit for the
output expression: F E 10, 11, 13)
3. What is the difference between combinational circuit and sequential circuit? Draw the circuit of
half adder and full adder and give its equation and truth table.
4. Compare and contrast the various flip-flops with their characteristic tables. Also draw the
circuit of each type of flip-flop.
5. What are multiplexers and de-multiplexers? Draw the circuit of 16 X 1 Multiplexer? Also give
its characteristic table.
6. Explain the difference between synchronous and asynchronous counter and draw the circuit of
both the counters. What is the use of counters in computer circuits?
7. What are the different types of Instructions used in computers? Explain with examples.
8. Write an assembly language program to find the maximum in a group of 10 numbers stored in
memory. Store the result in AL register.
9. What is RAID? Describe different levels of RAID with three features at each level.
10. Write short notes on any four:
Programmable Logic Array
Universal gates
Fundamental gates
Decoder
Types of memories.