Title of the Paper: Advanced Month & Year of Examination: November - 2012 Subject Code: PSB1B Semester: Year: Time: Three hours Maximum: 75 marks PART – (10 * 1 = 10) Answer any TEN questions. All questions carry equal marks. Each answer should not exceed 50 words. 1. Why do digital computers use binary numbers for their operation? 2. What is meant by address sequencing? 3. List out the different computer instruction formats. 4. What is the role of program counter in addressing? 5. Give the basic structure of the pipeline processor. 6. What is micro programmed control unit? 7. When a ALU is said to be bit sliced? 8. What are the types of microoperations? 9. How does bus arbitration typically work? 10. What is strobe signal? 11. What is destructive readout? 12. Mention the causes of long access a block of data in serial-access memory. PART B – (5 * 5 = 25) Answer any FIVE questions. All questions carry equal marks. Each answer should not exceed 200 words. 13. How will you design the control unit? 14. Mention the data transfer and manipulation in central processing unit. 15. Draw the flowchart of floating point addition process. 16. Why does DMA has priority over CPU when both requests memory transfer? 17. Give an internal organization of a typical cell of a associative memory. 18. What are the relative merits and demerits of horizontal and vertical micro instruction formats? 19. Write short notes on logic and shift operations. PART – (4* 10 = 40) Answer any FOUR questions. All questions carry equal marks. Each answer should not exceed 500 words. 20. Explain in detail about register transfer logic with suitable example. 21. Explain how pipelining helps to speed-up the processor. 22. Design a multiplier that multiplies two 4-bit numbers. 23. Discuss the general steps involved in interrupt driven data transfer. 24. Describe the organisation of a typical RAM chip. 25. What is memory interleaving? Explain the addressing of multiple module memory system. |
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