Exam Details
Subject | digital computer organization | |
Paper | ||
Exam / Course | p.g.d.c.a. | |
Department | ||
Organization | Alagappa University Distance Education | |
Position | ||
Exam Date | May, 2017 | |
City, State | tamil nadu, karaikudi |
Question Paper
DISTANCE EDUCATION
P.G.D.C.A. EXAMINATION, MAY 2017.
First Semester
DIGITAL COMPUTER ORGANIZATION
(2011 Calendar Year Onwards)
Time Three hours Maximum 100 marks
SECTION A — 8 40 marks)
Answer any FIVE questions.
1. Convert the octal number 623. 77 to decimal, binary and
hexadecimal.
2. Discuss about any two binary codes.
3. Express the Boolean function F A in a sum of
minterms.
4. Write briefly about a decoder.
5. Describe the working principle of a half adder.
6. Write about shift registers.
7. Draw the block diagram of a memory wait and explain.
8. Write short notes on interrupts.
Sub. Code
11
DE-029
2
Sp 1
SECTION B — × 15 60 marks)
Answer any FOUR questions.
9. Using the complement number system, perform
the following subtractions.
0.10010.0110
11011 11001.
Using the complement number system, find
1111 110
111.1
Convert the Hexadecimal numbers to decimal
64 AC
D 2763.
10. Discuss the basic laws of Boolean algebra and prove the
Demorgan's law.
11. Explain the functions of a mutiplexer.
12. Describe the parallel Binary adder.
13. Explain the working principle of master slave flop-flops.
14. Write about magnetic disk memories.
15. Discuss on
Instruction word.
controlling arithmetic operations.
P.G.D.C.A. EXAMINATION, MAY 2017.
First Semester
DIGITAL COMPUTER ORGANIZATION
(2011 Calendar Year Onwards)
Time Three hours Maximum 100 marks
SECTION A — 8 40 marks)
Answer any FIVE questions.
1. Convert the octal number 623. 77 to decimal, binary and
hexadecimal.
2. Discuss about any two binary codes.
3. Express the Boolean function F A in a sum of
minterms.
4. Write briefly about a decoder.
5. Describe the working principle of a half adder.
6. Write about shift registers.
7. Draw the block diagram of a memory wait and explain.
8. Write short notes on interrupts.
Sub. Code
11
DE-029
2
Sp 1
SECTION B — × 15 60 marks)
Answer any FOUR questions.
9. Using the complement number system, perform
the following subtractions.
0.10010.0110
11011 11001.
Using the complement number system, find
1111 110
111.1
Convert the Hexadecimal numbers to decimal
64 AC
D 2763.
10. Discuss the basic laws of Boolean algebra and prove the
Demorgan's law.
11. Explain the functions of a mutiplexer.
12. Describe the parallel Binary adder.
13. Explain the working principle of master slave flop-flops.
14. Write about magnetic disk memories.
15. Discuss on
Instruction word.
controlling arithmetic operations.
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