Kurukshetra University 2008-4th Sem B.Tech . - Question Paper

BT-4/j08
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 Von-Neuman model of computer. 6
b)explain multilevel viewpoint of machine. 6
c)what is MIPS? how it is used to measure the performance of a computer? 8

2. a) an instruction is stored at location 300 with its address field at location 301. the address field has the value 400. A processor register R1 contains the number 200. evaluate the effective address if the addressing mode of the instruction is:
i. direct
ii. immediate
iii. relative
iv. register indirect
v. index with R1 as the index register 10

b) compare and contrast Risc and Cisc . 10


Unit --2

3. a) elaborate different techniques of microinstruction sequencing? discuss. 10
b)discuss the different instruction set formats. 10


4. a) differentiate Hardwired and Microprogrammed control unit. 10
b) discuss in detail general register organized cpu. 10

unit --3
5. a) why we need memory hierarchy? 5
b)what is virtual memory? how address mapping takes place in virtual memory? 8
c) discuss working of a cache memory. why we need cache initialization? 7

6. a) what is content addressable memory? discuss the match logic in CAM. 10
b) differentiate static and dynamic memories. 10

7 a) evaluate the expression X=(A+B)*(C-D) using
i. 3 address instruction.
ii. 2 address instruction.
iii. 1 address instruction.
iv. zero address instruction. 8

b) explain priority interrupts. discuss various methods for establishing priorities in detail. 12


8. write short notes on:
a) DMA
b)Superscalar Processing
c) instruction cycle.
d) parallelism. 20

Earning:   Approval pending.