Code No-NR- 310201

III-B.Tech. I-Semester Supplementary Examinations, May/June-2004

COMPUTER ORGANIZATION
Set No. 2
(common to EEE, ECE, EIE and ET)

Time: 3 Hours
Max. Marks: 80

Answer any FIVE questions

All questions carry equal marks

1. Write algorithm to find all allowable weight for a “weighted BCD code”.

2. (a) How mandatory signal lines for PCI are functionally grouped.

(b) Explain typical desktop system using PCI configuration.

3. Discuss about various Pentium addressing modes with algorithms.

4. (a) List and describe Load \Store\Exchange instructions of Motorola 88000

(b) Draw and explain Motorola 88000 system block diagram.

5. (a) Differentiate between preemptive and non-preemptive memory allocation schemes.

(b) Compare various page replacement policies.

6. Discuss three possible techniques for I\O operations with merits and demerits of each.

7. (a) What is microinstruction. Give an interpretation of it.

(b) How is microprogramming concept used to implement control unit?

(c) Differentiate between high level and microprogramming languages.

8.(a) Discuss about programming parallelism and shared variables.

(b) Explain about snoopy caches and directory- based schemes for enforcing cache coherence.