BT-4/j07
Computer Architecture and Organization
Paper: CSE-202E
Time--Three Hours][Maximum Marks--100
Note:- attempt any five questions in all, selecting at least one from each unit.
Unit -1
1. a) discuss the two metrics to measure the performance of a computer system. what
are the characteristics of a CISC. What are the pros and cons of using these two
metrics? 10.
b) what are the characteristics of CISC architecture? how is it different from RISC
architecture? 10
2. a) Explain immediate and indexed addressing modes. discuss their advantages and
disadvantages. 10
b) how do you classify instructions in an instruction set? Explain any two instructions is
each category with examples. 10
Unit -2
3. a) Explain the register-based CPU architecture with the help of a suitable diagram.
10
b) explain five 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 explain its working.
10.
Unit -3
5. a) What is memory hierarchy? explain the principle of locality of reference. 10
b) distinguish between SRAM and DRAM. 10
6. a) What are relative advantages and disadvantages of direct and associative
mapping of cache memory? 10
b) what are LRU and OPT policies of page replacement? compare them with suitable
example. 10
Unit -4
7. a) what is instruction level parallelism? explain 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.Labels: India Question Papers