Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 1st Year (First Year) Regulation-R19 2020 November 861AB Computer Organization And Architecture Previous Question Paper
S OCT 2020
R19
Code No: 861AB
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA I Semester Examinations, October/ November - 2020
COMPUTER ORGANIZATION AND ARCHITECTURE
Time: 2 Hours
Max.Marks:75
Answer any five questions
All questions carry equal marks
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1.a)
Draw a 4-bit adder-subtractor circuit diagram and explain its functional description.
b)
Give the Register Transfer Level (RTL) statements for Push and Pop operations. [7+8]
2.
With suitable block diagram, explain the working of a micro programmed sequencer.
[15]
3.a)
Represent -424.19 as signed magnitude, 1's complement, 2's complement numbers.
used
b)
Draw a flow chart to explain floating point multiplication with an example.
[7+8]
4.a)
Explain DMA based data transfer. Give the respective block diagram of it.
b)
Compare isolated I/O and memory-mapped I/O.
[7+8]
5.a) What are the characteristics of a Multiprocessors?
b)
Discuss about serial arbitration and parallel arbitration with relevant diagrams.
[7+8]
6.
List and explain various memory-reference and register-reference instructions with
clear examples.
[15]
7.a)
What is the role of symbolic microprogram and binary microprogram in micro
programmed control?
b) Give an example to illustrate zero-address, one-address and two-address instructions.
[7+8]
8.a)
Multiply 10111 with 10011 using Booth's algorithm.
b)
Describe the hardware for signed 2's complement addition and subtraction?
[7+8]
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This post was last modified on 16 March 2023