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D 11196 ஆ (Pages : 2) { கைபட்ட...
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FIFTH SEMESTER B.Sc. DEGREE EXAMINATION, NOVEMBER 2016
(CUCBCSS-UG)
Computer Science
BCS 5B 08—COMPUTER ORGANIZATION AND ARCHITECTURE

"Time : Three Hours : _ Maximum : 80 Marks
Part A
Answer all questions.
Each question carries 1 mark.
1. What MAR?
2. Define bus.
3. Define hit ratio.
4. What is nibble ?
5. Whatisstack? `
6. Define instruction cycle.
7. What is CISC ?
8. What is SIMD ?
9. What is volatile memory ?
10. What do you mean by effective address ?
(10 x 1 = 10 marks)
Part B (Short Answers)
Answer all questions.

Each question carries 2 marks.
11. What is the need for addressing modes ?
12. What are the advantages of pipelining ?
13. Explain the procedure to initiate DMA by the CPU.
14. Mention the advantages of Cache memory.
15. How floating point numbers are represented in memory ?
(5 x 2 = 10 marks)

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