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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FOURTH SEMESTER B.TECH DEGREE EXAMINATION, JULY 2017

Course Code: CS202
Course Name: COMPUTER ORGANISATION AND ARCHITECTURE (CS, IT)

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions. Each carries 3 marks.
1 Differentiate between big-endian and little-endian byte assignments. (3)
2 Design a 2x2 array multiplier. (3)
3 Describe auto increment addressing mode with the help of an example. (3)
4 Give the control sequence for execution of instruction Add[R2],R1 using a (3)

single bus organization.
PART ‏تا‎
‎Answer any two questions. Each carries 9 marks.

5 a) Describe, with proper examples, the role of processor stack in subroutine call (5)

and return.
b) Draw the flowchart for decimal multiplication. (4)
6 a) Explain restoring method of division with the help of a flow chart. (5)

b) Write notes on three address, two address and one address instructions, giving (4)
example for each.
7 പച Explain single bus organization with the help of a diagram. Specify with (5)
examples, how memory operations are done in the given organization.

b) Describe any 4 addressing modes with examples. (4)
PART C
Answer all questions. Each carries 3 marks.
8 What are vectored interrupts? (3)
9 Write notes on flash memory. (3)
10 Briefly explain the LRU cache replacement algorithm (3)
11 Describe centralized bus arbitration. (3)
PART D

Answer any two questions. Each carries 9 marks.

12 9) Explain the architecture of USB with ೩ diagram. What do you mean by split (5)
bus operation in USB?
b) Write notes on static memories. (4)

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