Code No-NR- 310201

III-B.Tech. I-Semester Supplementary Examinations, November-2003

COMPUTER ORGANIZATION
Set No. 1
(common to EEE, ECE, EIE and ET)

Time: 3 Hours
Max. Marks: 80

Answer any FIVE questions

All questions carry equal marks

1. (a) Give the general structure of a Von Neumann machine and describe the function of each unit.

(b) Describe how an instruction is executed using flow chart in an IAS computer.

2. (a) Compare interrupt-handling mechanism in Pentium and Power PC processors.

(b) Explain the arithmetic and data transfer instructions.

3. With a neat diagram explain the internal organization of 8085. Clearly explain the functions of various registers in 8085.

4. (a) What is a micro operation? With the help of a diagram explain the constituent elements of a program execution.

(b) Expand and explain the following terms:
MAR, MBR, PC, IR.

5. (a) With the help of a diagram, clearly explain the functioning of a microprogrammed control unit.

(b) Microprogrammed unit is slower than hardwired unit Justify this statement.

6. (a) What do you mean by virtual memory?

(b) Explain the demand paging technique in detail.

7. (a) What is a Bus? Discuss two typical Bus structures.

(b) What are different types of I/O devices? Discuss the advantages of using I/O processor.

8.(a) What is Polling in hardware and in software?

(b) Design a parallel priority interrupt hardware for a system with eight interrupt sources.