B D192016 Pages:2

Reg No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FOURTH SEMESTER B.TECH DEGREE EXAMINATION(S), DECEMBER 2019
Course Code: CS202
Course Name: COMPUTER ORGANISATION AND ARCHITECTURE
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 3 marks

1 Give the relevance of MAR, PC and IR in a typical computer system with neat
diagram. 1

2 Differentiate between Big-endian and Little-endian assignment for word
addressing. 1

3 Illustrate the advantages of using multiple bus organization over single bus
organization with the help of a sample instruction execution. ١
4 Divide 25 by 8 using restoring division algorithm. 3

PART 13
Answer any two questions, each carries 9 marks

5 9) Define Addressing mode and explain Different types of addressing modes with an
example for each. ١
b) Show the effect of stack operations on the stack with diagram. 3

6 a) What is meant by instruction sequencing? Discuss the different types of
instruction sequencing with example. 4
b) Illustrate Booth multiplication with an example 5

7 8) Discuss the data path inside the processor with single bus organization with neat
diagram 4

b) Write down the control sequence for the execution of the instruction
Add (R1), R2 in single bus organization °

PART C
Answer all question, each carries 3 marks

8 Discuss the different ways of accessing I/O devices of a computer system. 3
9 Explain the daisy chain method with neat diagram 3

10 Justify the need of memory hierarchy in a computer and discuss the various
parameters that are considered for the formation of memory hierarchy. 1
11 Discuss about different types of RAMs. 3

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