Maharashi Dayanand University (MDU) 2007 M.C.A Computer Organization adn Architecture 2006 - Question Paper

Q:1 (a)What are micro-operations? elaborate its different types? Illustrate the Implementation
of every category of micro-operations through its block diagram(s).

(b) What do you mean by Array Processors? elaborate different kinds of array processors? How do
they principally differ from every other?

Q:2 (a)What do you understand by Inter-Process Communication(IPC)? What is synchronization?
When and why is It needed? How the identical is achieved? discuss.

(b) What is Ring-counter? How does it differ from Binary-down Counter? State the usefulness of
every and discuss working of Binary-down counter.

Q:3 (a)What is a Control unit? elaborate the basic functions of Control Unit? What is the general model of a
Control Unit? Illustrate a CPU indicating all its functional units and corresponding control signals.

(b) What is a Shift-register? Show how a shift-register with parallel load can be used to convert
parallel input to serial outputs and serial inputs to parallel output.

Q:4 (a)What is Cache Coherence? Why does it occur? Briefly explain at lowest 2 techniques to
overcome Cache Coherence issue.

(b) describe Pipelining. When, where and why is it necessary? How Instruction Pipelining and
Arithmetic Pipelining are achieved? discuss.

Q:5 (a) What is meant by a floating point number ? What maximum and minimum floating-point
number can be represented in a 64-bit computer having a sign bit for mantissa, 15 exponent bits and
32 mantissa bits? Also indicate the positive / negative overflow and underflow ranges of the number
on the scale.

(b) Differentiate ranging from sequential and Combinational circuit. Design the circuit of a Full
Adder. Illustrate its use.

Q:6 (a)What is Vector Processing? What is its significance? How is it achieved? Also enumerate
certain applications which demand Vector-Processing?

(b) Is programmed I/O technique not suitable for voluminous data transfer? If not, then Illustrate
the suitable technique for this purpose through its block diagram.


Q:7 (a)How are I/O Module, I/O Peripherals , I/O Channels and External inter-related to Performed
by I/O module along with its block diagram depicting its structure.

(b) What is a microprogramming? How does it differ from programming? Write down at lowest 2
micro programs of your option explaining all its steps.

Q:8 (a)What do you understand by Inter-processor Arbitration? How does Parallel Arbitration
techniques differ from Serial Arbitration technique? Illustrate.

(b) What is an Interconnection? How does Hypercube Interconnection differ from Crossbar Switch
Interconnection? discuss.

Earning:   Approval pending.