Punjab Technical University 2009 M.C.A Computer System Architecture - Question Paper

Roll No. …………………
Total No. of ques. : 13 [Total No. of Pages:02]

Paper ID[A0511]
MCA(301)(S05)(O)(LE)(Sem. – 3rd)
COMPUTER SYTEM ARCHITCTURE

Time : 03 Hours
Maximum Marks : 75
Instruction to Candidates:
1) Selection - A is Compulsory.
2) Attempt any 9 ques. from part – B

part A
Q1)
a) What is the difference ranging from latch and flip flop?
b) What is Demultiplexer?
c) What is the difference ranging from high level and low level language?
d) What is the function performed by timing and control unit in a microprocessor?
e) What is a 2 byte instruction? provide example.
f) What are the function that are integrated in Instruction Fetch Unit?
g) What is difference ranging from micro-operation and macro-operation?
h) What are different methods of control logic design?
i) List the several factors that affect the performance of a bus.
j) What is the use of branch to subroutine instruction?
k) Give the function of memory address and memory buffer registers.
l) What are the basic requirements for a memory unit?
m) What are the functions of ROM?
n) What is sequential access memory? provide Example.
o) What are interleaved memory organization?

part B

Q2) What are the various logic gates used for the design of digital circuits? provide their logic symbols and truth tables.
Q3) What is counter? explain its working principle.
Q4) Describe the different instruction code formats.
Q5) Outline a few specific properties of Risc systems.
Q6) Describe the design procedure for hard wired control.
Q7) Describe the concept of interrupts and vectored interrupts in handling I/O devices.
Q8) Sketch and discuss the timing diagram of an input transfer on a synchronous bus.
Q9) With the help of a neat diagram and example, discuss the working of a typical micro programmed control unit.
Q10) What are the different kinds of ROM? explain the methods of programming ROMs.
Q11) Compare shared memory multiprocessor architecture and distributed memory architecture.
Q12) Discuss about implementation of virtual memory and cache memory. What is their importance?
Q13) Explain the working of dynamic memory. Why dynamic memory is more suitable for computer RAM?

Earning:   Approval pending.