Download JNTUH MCA 1st Year R19 2021 July-August 861AB Computer Organization And Architecture Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 1st Year (First Year) Regulation-R19 2021 July-August 861AB Computer Organization And Architecture Previous Question Paper

R19

Code No: 861AB













2021

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA I Semester Examinations, July/August - 2021

COMPUTER ORGANIZATION AND ARCHITECTURE

Time: 3 Hours













Max.Marks:75

Answer any five questions

All questions carry equal marks

- - -


1.a) With the help of a function table and a circuit block diagram, explain how a 4 - bit

arithmetic circuit works.















b) Give examples for selective-set, selective-compliment and selective-clear operations.























[7+8]











2.

How can you say that hardwired control unit is faster than micro programmed control

unit? Explain with relevant diagram.











[15]


3.a) Represent -534.72 as signed magnitude, 1's complement, 2's complement numbers.

b) Explain Booth's algorithm for multiplication.









[7+8]


4.a) Why page-table is required in a virtual memory system. Explain different ways of

organizing a page table.

b) Explain how cache memory is different from virtual memory.





[7+8]


5.

Draw the four segment pipeline diagram for floating point addition and subtraction and

explain the same.

















[15]


6.

Define an interrupt. What happens during the interrupt cycle? Demonstrate with the

help of a flowchart and example.













[15]



7.a) What are the design goals of control unit?

b) Compare RISC and CISC instructions. Give their respective advantages and

disadvantages.

















[7+8]



8.a) Describe the flowchart for the floating point division operation with an

example.

b) Explain arithmetic overflow and divide overflow with some examples for 2's

complement numbers.















[7+8]



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