Code No-NR- 310201

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

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. (a) Discuss about general purpose registers and memory format of IAS computer.

(b) Express the following numbers EE32-bit floating-point format.

2. (a) Describe the various addressing techniques with examples.

(b) List out the characteristics of RISC architecture.

3. (a) Describe the functions performed by a control unit with the help of a functional diagram.

(b) Give the organization of a control memory.

4. (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.

5. (a) What is a micro-operation? With the help of a diagram explain the constituent element of a program execution.

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

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

(b) Explain the demand paging technique in detail.

7. Discuss the following.

(a) Multi-bus (b) I/O channel
(c) I/O modules (d) I/O processor.

8. (a) Explain the working of a DMA controller.

(b) What is program controlled I/O? Explain.