M.C.A. DEGREE EXAMINATION,
NOVEMBER 2017
First Semester
DIGITAL COMPUTER ORGANIZATION
(Common for M.C.A. /M.C.A.
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Section A (10 x 2 20)
Answer all the questions.
1. What are Micro-computers?
2. Convert the binary number (1010.011)2 to decimal.
3. Define: Encoder.
4. What are Registers?
5. Write a note on: MAR.
6. List any two common operations of execute cycle.
7. What is memory stack?
8. What is Indexed Addressing?
9. Comment on Interface Chip.
10. What is meant by cycle stealing?
Sub. Code
541101/
545101
RW-962
2
Sp 1
Section B 5 25)
Answer all the questions, choosing either or
11. Explain the fundamental concepts of Boolean
Algebra.
Or
Write short note on Two level implementation of
combinational circuits.
12. Write short notes on multiplexer.
Or
Explain fixed point representation with examples.
13. Write short note on instruction codes.
Or
Explain the design of basic computer.
14. Write short note on Instruction Formats.
Or
Explain the Instructions for Data Transfer and
Manipulation.
15. Write short note on Input Output interface.
Or
Explain Memory Management Hardware.
RW-962
3
Sp 1
Section C x 10 30)
Answer any three questions.
16. Explain the concept of sum of products and products of
sum with examples.
17. Elaborate Error detection codes with an example.
18. Explain the design of Accumulator logic.
19. Elaborate the concept of Stack Organization.
20. Explain in detail about serial communication.
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