Sathyabama University B.E DCS 6C0063 Operating Systems September 2010

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SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E - DCS

Title of the Paper: Operating Systems                   Max. Marks: 80

Sub. Code: 6C0063                                                 Time: 3 Hours

Date: 09/09/2010                                                    Session: FN

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                                       PART - A                    (10 x 2 = 20)

                        Answer ALL the Questions

1.     Explain the term operating systems and its goals?

2.     What is meant by Multi programming?

3.     Differentiate: Process Vs Thread

4.     Define the term: Turn around time?

5.     What is Race Condition?

6.     What is meant by Deadlock?

7.     Define Page Fault.

8.     What is Thrashing?

9.     Define Kernal.

10.   Differentiate Static and Dynamic Linking.

PART – B                       (5 x 12 = 60)

Answer All the Questions

11    Explain the Operating system Structure with neat diagram? What are the three main purpose of an operating system?

(or)

12    Discuss the essential properties of the following operating system.

        (a) Time Sharing OS

        (b) Real Time OS

        (c) Distributed OS

       

13.   Explain any two process scheduling algorithms with suitable example.

(or)

14.   What is Semaphores? Explain in detail.

15.   (a) Explain the Critical Section problem in detail.

        (b) Write short notes on FCFS algorithm with example.

(or)

16.   Explain the Bankers algorithms for dead lock avoidance.

17.   Explain any three page replacement algorithm.

(or)

18.   Explain any three disk scheduling techniques.

19.   Explain various components of a Linux system.

(or)

20.   Explain how memory management is handled by Linux operating system.

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