Question Paper: Computer Organization and Architecture : Question Paper Dec 2015 - Information Technology (Semester 4) | Mumbai University (MU)
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Computer Organization and Architecture - Dec 2015

Information Technology (Semester 4)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.


Solve any four out of five.

1 (a) Differentiate between RISC and CISC.(5 marks) 1 (b) What are the functions of following registers?
i) PC ii) SP iii) MAR iv) MDR v) IR
(5 marks)
1 (c) Write a note on interrupt execution.(5 marks) 1 (d) Define Stored Program Concept and draw Von-Neimann's architecture.(5 marks) 1 (e) What is meant by nanoprogramming?(5 marks) 2 (a) Multiply (-3) and (4) using Booth's Algorithm.(10 marks) 2 (b) Explain 6 stage instruction pipeline with suitable diagram.(10 marks) 3 (a) Compare SRAM & DRAM.(10 marks) 3 (b) Consider the string 1, 3, 2, 4, 2, 1, 5, 1, 3, 2, 6, 7, 5, 4, 3, 2, 4, 2, 3, 1, 4.
Find the page faults for 3 frames using FIFO and LRU page replacement algorithms.
(10 marks)
4 (a) Divide 11 by 2 using restoring division algorithm.(10 marks) 4 (b) What is meant by Fetch cycle, Instruction cycle, Machine cycle and interrupt cycle? Explain in brief.(10 marks) 5 (a) Explain different mapping techniques of Cache memory.(10 marks) 5 (b) What is virtual memory? Explain the role of paging and segmentation in virtual memory.(10 marks) 6 (a) Explain different addressing modes with example.(10 marks) 6 (b) What is the need of DMA? Explain its various techniques of data transfer.(10 marks)

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