SPRING 2014 ASSIGNMENT
PROGRAM MCA (REVISED FALL 2012)
SEMESTER SECOND
SUBJECT CODE & NAME - MCA2010 – OPERATING SYSTEM
CREDIT 4, BK ID B1405, MAX. MARKS 60
You can pay in 6 instalment of Rs 125-125 if u have any doubt.
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Q1. Define Operating system. List any six functions of operating system 4+6= 10
Answer:
Operating System – Definition
Operating System is a System Software (Set of system programs) which provides an environment to help the user to execute the programs. The Operating System is a
Q2. Differentiate between direct and indirect communication. 5+5 10
Answer:
Direct Communication:
In the direct-communication discipline, each process that wants to communicate must explicitly name the recipient or sender of the communication. In this scheme, the send
Q3. How a virtual memory can be implemented? What are the benefits of using virtual memory? 5+5=10
Answer:
Virtual memory implementation:
Every process needs to be loaded into physical memory for execution. One brute force approach to this is to map the entire logical space of the process to physical memory, as
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
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 remaining processors are slaves and form a pool of computational processors. The
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