I '1 Fl rst?a?kEfCGGMS / Computer Organisation and Architecture
Firstranker's choice FirstRanker.com
(3 Hours) [Total marks: 100]
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Note (1) Question No. 1 is compulsory.
(2) Attempt any four out of remaining six questions.
(3) Answer to sub-questions should be grouped together.
Q1. (a) Using K-Maps, simplify the following expression in four variables A, B, C, D. Draw logic diagram for the obtained solution. = 5
F(A,B,C,D) = X(0,2,4,5,6,7,8) + d(12, 13,14,15)
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(b) Explain micro operation in detail. 5
(c) Compare computer organization and computer architecture. 5
(d) Explain Synchronous counters in detail. 5
Q2. (a) What is the significance of RAID? Explain any four RAID levels in detail. 10
(b) Why are flip-flops called as bi-stable elements? Explain S-R flip flop in detail. 10
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Q3. (a) Compare hardwired Vs micro programmed control unit. 10
(b) Why Cache memory is needed? Name various elements of cache design. 10
Q4. (a) Difference the following 10
I. SRAM & DRAM
II. Programmed I/O & Interrupt driven I/O
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(b) Discuss 1 to 8 de-multiplexer using truth table. Draw its implementation using the appropriate gates. 10
Q5. (a) What is instruction pipelining? Write a detailed note on six stage instruction pipeline along with diagram. How conditional branching affects pipeline performance? 10
(b) With reference to parallel processing.explain SISD, SIMD, MISD and MIMD. What is their significance in practical parallel processing approaches? 10
Q6. (a) Explain DMA techniquein detail with the help of suitable diagram. (Explain Breakpoints and Cycle stealing in it) 10
(b) Define cluster. Explain different clustering methods in detail withits benefits and limitations. 10
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Q7. Write short hote on any two of the following 20
(a) Symmetric multiprocessors
(b) Associative memory
(c) Instruction cycle & its sub cycles
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