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PROGRAM
MCA(REVISED FALL 2012)
SEMESTER
SECOND
SUBJECT
CODE & NAME MCA2050- COMPUTER ARCHITECTURE
Qus:1
What is the difference between process and thread?
Answer:
The
Difference between Process and Thread:
Every process
presents the resources required to execute a program. A process has an
executable code, a virtual address space, open handles to system objects, a
unique process identifier, a security context, minimum and maximum working set
sizes, environment variables, a priority
Qus:2
Explain in detail the techniques to handle hazards.
Answer:
The
Techniques to Handle Hazards:
There are two
techniques to handle hazards namely minimising data hazard stalls by forwarding
and reducing pipeline branch penalties.
1.Minimising
data hazard stalls by forwarding:
Qus:3
Explain the Tumasulo approach. Write the differences between Tomasulo’s scheme
and score boarding.
Answer:
The
Tumasulo Approach:
Dynamic
Scheduling Algorithm – The Tomasulo Approach:
Dynamic
Scheduling Algorithm was proposed by Robert Tomasulo. Tomasulo’s scheme
combines the important constituents of scoreboard methodology with the prologue
of Register renaming. This scheme has many variants. The basic idea behind this
algorithm is “Avoiding WAR and WAW data hazards by use of renaming registers”.
Qus:4
Explain any five types of vector instructions in detail.
Answer:
Five
types of vector instructions in detail:
(a)
Vector-scalar
instructions: Using
these instructions, a scalar operand can be combined with a vector one. If A
and B are vector registers and f is a function that performs some operation on
each element of a single or two vector operands, a vector-scalar operand can be
defined as follows:
Qus:5
Differentiate between multiprocessor and multi-computer.
Answer:
Differentiate
between Multiprocessor and Multi-computer:
Multi
processor:
Multiprocessor
are systems with multiple CPUs, which are capable of independently executing
different tasks in parallel. They have the following main features:
·
They
have either shared common memory or unshared distributed memories.
·
They
also share resources for example I/O devices, , system utilities, program
libraries, and databases.
·
They
are operated on integrated operating system that gives interaction among
processors and their programs at the task, files, job levels and also in data
element level.
Qus:6
Write short notes on:
a)
DSP Processor
b)
Dual core technology
Answer:
a)
DSP Processor:
DSP Processor is
designed to execute digital signal processing, i.e. mathematical handling of
digitally presented signals. ‘Digital signal processing’ is one of the most
important core technology in swiftly emerging areas like video & audio
processing wireless communications and industrial digital security and control.
Beside the growing recognition of DSP applications,
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