Summer 2014 ASSIGNMENT
PROGRAM M.Sc IT
SEMESTER SECOND
SUBJECT CODE & NAME - MIT201 – OPERATING SYSTEM
CREDIT 4, BK ID B1405, MAX.
MARKS 60
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Q1. Differentiate between
Simple Batch Operating Systems and Timesharing Operating Systems. 5+5= 10
Answer:
Simple
Batch Operating Systems
In the earliest days digital computers usually run from a console.
I/O devices consisted of card readers, tape drives and line printers. Direct
user interaction with the system did not exist. Users made a job consisting of
programs, data and control information. The job was submitted to an operator
who would execute the job on the computer system. The
Q2. What are the common
CPU Scheduling Criteria? explain.
Answer: competing to use
it. This process is called CPU scheduling.
CPU Scheduling Criteria:
There are many scheduling algorithms and various criteria to judge
their performance. Different algorithms may favor different types of processes.
Some criteria are. as follows:
Q3. Define Deadlock.
Explain necessary conditions for deadlock.
Answer:
Several processes compete for
a finite set of resources in a multi-programmed environment. A process requests
for resources that may not be readily available at the time of the request. In
such a case the process goes into a wait state. It may so happen
Q4. Differentiate between
Sequential access and Direct access methods. 5+5= 10
Answer:
Sequential
access
In this simple access method,
information in a file is accessed sequentially one record after another. To
process the ith record all the i-1 records previous to i must be accessed.
Q5. Write short notes on:
a) Global Operating System
(GOS)
b) Remote Procedure Call
(RPC) 5+5 = 10
Answer:
a) Global Operating System
(GOS)
The NOS is
responsible for activities such as memory and process management on the server.
The NOS converts a request into a task, schedules and executes it. Memory and
processing power in all other computers in the network is not tapped to the
maximum by
Q6. Differentiate between
master/slave and Symmetric Multi- processor Operating Systems 5+5=10
Answer:
Master/Slave
In this
approach, one processor – the master is dedicated to execute the operating
system. The
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