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, 2018
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. Define Binary Number system. Explain with examples how binary operations are done using
one complement and two complement method.
2. Discus NAND, NOR and XOR gates with their truth tables and circuit diagrams. Why NAND and
NOR gate called universal gate?
3. Draw a combinational circuit using AND, OR and NOT gate such that for every four bit even
input the output is zero.
4. What are flip-flops? Explain the working of master and slave flip flop with circuit diagram.
5. Simplify and draw a circuit diagram for the following Boolean function in SOP form using
K-Map,

6. What is the function of a counters? Explain different types of counters with circuit diagram.
7. What is memory in computers? Discuss different types of memories used in Computers.
8. What is the difference between hardwired control and micro-program control? What are their
advantages and disadvantages?
9. Write an Assembly Language program to add three numbers and display its result. Write
explanation for each step.
10. Write short notes on the following
T-flip flop
D-flip flop
Addressing modes
Assembler.