Download JNTU (NR) M.TECH 2-Semester MICRO COMPUTER SYSTEM DESIGN March–2009 Exam Question Paper

Code No. B3804
M. Tech. II Semester Supplementary Examinations, March – 2009
(Digital Electronics and Communication Systems)

Time: 3 hours        Max. Marks.60
Answer any Five questions
All questions carry equal marks

1.a) Explain the Memory management unit of 80286 processor.
b)  Explain the interrupt handling mechanism in 80386 processor.

2.a)  Compare the architectural features of Pentium and Pentium pro processor.
b)  List the adducing modes of 8086 instructions.

3.a)  List out the BIOS function calls and explain them.
b)  Explain how 80386 moved to protocol mode?

4.a)  Explain the concept of  virtual memory management?
b)  What is Cache memory? Why do we have to use separate cache for data and

5.a)  Draw and explain the software model of 80486 processor.
b)  What memory organization technique is used in pentrive processor? Explain.

6.a)  Contrast the RISC and CISC processors.
b)  What is meant by branch prediction mechanism? How does it improve the
performance of a processor?

7.  Explain the paging, page directory and page table techniques in memory
organization and management in 80486 and Pentium processor.

8.  Write short notes on (a) DOS function calls  (b) Associate memory organization.


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