Punjab University 2005-1st Year B.C.A Computer Application COMTER ORGANISATION AND SYSTEM MAINTENANCE ( ) (il ) - Question Paper

COMPUTER ORGANISATION AND SYSTEM MAINTENANCE

PAPER-BCA-05

Time Allowed: 3 Hours Maximum Marks:100

Note:Attempt any 5 ques.. All ques. carry equal marks.


1. (a) explain the general architecture of micro-computer. (10)

(b) Draw difference ranging from decoders and encoders with example of your

option (10)


2. (a) How in determine states of R-S flip-flops are determined in J-K flip-flops?

discuss the working of J-K flip-flops. (10)

(b) elaborate basic operations that are carried out an registers? discuss. (10)


3 (a) explain the role of memory in Computer System Architecture. (10)

(b) discuss Instruction Execution Cycle in detail. (10)


4. (a) explain different kinds of memory reference addressing modes. (10)

(b) explain different hazards on pipelining and their removal procedures. (10)


5. (a) provide functional description of different internal cards of PC. (10)

(b) define working of any peripheral device used in Personnel Computer. (10)


6. (a) How we know that there is virus in PC? explain its detection from PC. (10)

(b) What is interrupt? Draw difference ranging from vector and priority interrupt. (10)


7. (a) How subtraction for sign magnitude numbers is carried out in assembly. language? (10)

(b) explain direct Memory Access based into data transfer. (10)


8. Write short note on any two

(a) CPU Organization

(b) Virtual Memory Organization

(c) Diagnostics PC (10*2=20)

Earning:   Approval pending.