COMPUTER ORGANISATION AND SYSTEM MAINTENANCE
PAPER-BCA-05
Time Allowed: Three Hours Maximum Marks:100
Note:Attempt any five questions. All questions carry equal marks.
1. (a) Discuss the general architecture of micro-computer. (10)
(b) Draw difference between decoders and encoders with example of your
choice (10)
2. (a) How in determine states of R-S flip-flops are determined in J-K flip-flops?
Explain the working of J-K flip-flops. (10)
(b) What are basic operations that are carried out an registers? Explain. (10)
3 (a) Discuss the role of memory in Computer System Architecture. (10)
(b) Explain Instruction Execution Cycle in detail. (10)
4. (a) Discuss various types of memory reference addressing modes. (10)
(b) Discuss various hazards on pipelining and their removal procedures. (10)
5. (a) Give functional description of various internal cards of PC. (10)
(b) Describe working of any peripheral device used in Personnel Computer. (10)
6. (a) How we know that there is virus in PC? Discuss its detection from PC. (10)
(b) What is interrupt? Draw difference between vector and priority interrupt. (10)
7. (a) How subtraction for sign magnitude numbers is carried out in assembly. language? (10)
(b) Discuss 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)