Andhra University 2005 B.Tech Information Technology - Computer Organization - Question Paper

MODEL PAPER

B. Tech (IT) Degree exam

Second Year - 2nd Semester

COMPUTER ORGANIZATION

Time: three hrs
Max Marks: 70

First ques. is Compulsory

ans any 4 from the remaining ques.

All ques. carry equal marks

ans all parts of any ques. at 1 place

1. (a) What is the arithmetic shift and how to identify the over flow?
(b) What is firmware?
(c) What is asynchronous transmission?
(d) describe hit ratio?
(e) What is handshaking?
(f) describe index addressing mode?
(g) What is write back procedure in cache memory?

2. (a) Show the hardware including logic gates for the control function that implements the statement xy1T0 + T1 + x1yT2 : A ? A+1

(b) define the register transfer language operation illustrating with 1 example?

3. (a) define the mechanism of an instruction fetching, decoding and execution using flow chart?

(b) elaborate data manipulation instructions BASIC computer? discuss with examples.

4. (a) Compare hardware control and micro programmed control?

(b) Show how 9 bit micro operation field in a micro instruction can be divided into sub fields? discuss with an example.

5. (a) With flow charts discuss how floating point addition is performed in a computer?

(b) elaborate the functions performed by an I/O interface? discuss with an example.

6. (a) Compare and contrast isolated I/O and memory mapped I/O.

(b) Why does I/O interrupt make more efficient use of the CPU?

7. (a) discuss the need of the memo hierarchy?

(b) What is the associate memory and what type of operation it is more suitable?

8. Write short notes on
(i) Virtual Memory (ii) Instruction formats. (iii) DMA
(iv) Memory Reference Instructions of BASIC Computer

Earning:   Approval pending.