DISTANCE EDUCATION
M.C.A./M.C.A. (Lateral) DEGREE EXAMINATION,
MAY 2017.
Third Semester
OPERATING SYSTEMS
(2005 to 2010 Calendar Year)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20 100)
1. Narrate the evolution of operating systems in detail.
2. Elucidate the procedure of following operating system
structures
System calls
Virtual machines.
3. Write notes on
Inter process communications.
Semaphores concept with the dining-philosophers
problem.
4. Discuss the following process scheduling policies with
neat diagram
Priority scheduling.
Shortest job scheduling.
First come first serve scheduling.
Sub. Code
32
DE-448
2
wk11
5. Write about device controllers.
Narrate the role of device independent I/O software
and its applications.
6. Summarize the concept of deadlock avoidance with
banker's algorithm.
7. Discuss the concept of multiprogramming with
variable partitioning technique.
List out various page replacement algorithms and
explain any two of it.
8. What are the different kinds of allocation techniques used
as disk space management? Explain in detail.