Kurukshetra University 2007-4th Sem B.Tech ester. - Question Paper

BT-4/j07
Computer Architecture and Organization
Paper: CSE-202E

Time--Three Hours][Maximum Marks--100
Note:- attempt any 5 ques. in all, selecting at lowest 1 from every unit.

Unit -1

1. a) explain the 2 metrics to measure the performance of a computer system. elaborate the characteristics of a Cisc. elaborate the pros and cons of using these 2 metrics? 10.

b) elaborate the characteristics of Cisc architecture? how is it various from Risc architecture? 10

2. a) discuss immediate and indexed addressing modes. explain their advantages and disadvantages. 10

b) how do you classify instructions in an instruction set? discuss any 2 instructions is every category with examples. 10


Unit -2

3. a) discuss the register-based CPU architecture with the help of a suitable diagram. 10
b) discuss 5 stages instruction cycle with the help of flow chart. 10

4. a) How does pipeline processing of instructions improve the performance of the CPU? 10
b) draw the basic structure of a microprogrammed control unit and discuss its working. 10.

Unit -3

5. a) What is memory hierarchy? discuss the principle of locality of reference. 10
b) distinguish ranging from SRAM and DRAM. 10

6. a) elaborate relative advantages and disadvantages of direct and associative mapping of cache memory? 10
b) elaborate LRU and OPT policies of page replacement? compare them with suitable example. 10


Unit -4

7. a) what is instruction level parallelism? discuss the superscalar pipeline processing with a suitable diagram. 10

b) write a short note on microprogram sequencer. 10

8. write short notes on:
a) DMA. 10
b)Priority Interrupts. 10.

Earning:   Approval pending.