Reg No.:

000 00001 Pages: 2

Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Fourth semester B.Tech examinations (S), September 2020

Course Code: CS202

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

Max. Marks: 100

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PARTA
Answer all questions, each carries 3 marks
What is meant by zero- address instruction?
Design 2x2 array multiplier.
Autoincrement mode is useful for accessing data items in successive memory
locations. Justify the statement.

Draw the flowchart for Booth’s Multiplication algorithm.

PART ‏تا‎
‎Answer any two questions, each carries 9 marks

How the byte addresses are assigned across word?
Explain the execution of a complete instruction.
Specify the actions needed to execute the instruction Move (R1), R2
What is the role of processor stack in subroutine call and return?
Explain restoring method of division with the help of a flow chart.
Compare and contrast single bus and multiple bus organization of processor.
PART ட
Answer all question, each carries 3 marks
What is the function of interrupt-service routine?

How the time involved in polling process is reduced in interrupted I/O?
Write notes on synchronous DRAM.
Illustrate LRU cache replacement algorithm.
PART 0
Answer any two questions, each carries 9 marks
Differentiate the data transfer in programmed 1/0 and interrupt driven I/O
Write about the DMA controller registers that are accessed by the processor to

initiate data transfer.

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Duration: 3 Hours

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