Maharashi Dayanand University (MDU) 2007 M.C.A Computer Organization adn Architecture2006 - Question Paper

Q:1 (a) What is Instruction Set? elaborate the elements of an instruction? How an instruction is
represented? elaborate different kinds of instructions? Also enumerate the factors which play
important role for selection of an Instruction Set for a machine.

(b) What do you mean by an Instruction Cycle? elaborate different sub-cycles in an Instruction
Cycle? Also outline the steps performed during every of these sub-cycles.

Q:2 (a)What are Array Processors? elaborate different kinds of array processors? How do they
Principally differ from every other?

(b) What does floating-point representation differs from fixed-point Representation? Write down
general algorithms for addition and division of 2 floating-point numbers.

Q:3 (a)What do you understand by Pipelining? When, where and why it is necessary? Also
differentiate ranging from the Instruction Pipelining and Arithmetic Pipelining.

(b) What is Vector processing? State its significance and also enumerate certain applications,
which demand Vector processing.

Q:4 (a)What are micro-operations? elaborate its different types? Illustrate the
Implementation of every category of micro-operations through its block diagram(s).

(b) How does a micro-program differ from a program? explain the Wilkes’s micro programmed
design of Control Unit.

Q:5 (a)What is meant by an Input/Output( I/O ) module ? elaborate the functions performed By a I/O
Module? Illustrate the general structure of an I/O module.

(b) What is Cache Coherence? Why does it occur? Briefly explain at lowest 2 Techniques to
Overcome Cache Coherence issue.

Q:6 (a)How does a Crossbar Switch interconnection structure differ from Multi- port Memory
interconnection structure? Illustrate the difference through diagram(s).

(b) Illustrate the difference ranging from parallel and serial Interconnection Arbitration Techniques.

Q:7 (a)How does Risc architecture differ from Cisc? Briefly explain the Main characteristics of Risc
architecture.

(b) What is an Input/Output (I/O) Processor? Outline the functions performed by an I/O
Processor as well as illustrate the architecture for an I/O Channel.

Q:8 (a)Differentiate ranging from the following:
(i) Base addressing and relative addressing
(ii) Synchronous and Asynchronous data transfer.

(b) Which I/O technique is most suitable for heavy data transfer and why? Illustrate this
technique through its schematic diagram

Earning:   Approval pending.