Alagappa University 2007 B.C.A Computer Application PRINCIPLES OF OPERATING SYSTEM - Question Paper

DISTANCE EDUCATION
B.C.A. DEGREE EXAMINATION, DECEMBER 2007.
PRINCIPLES OF OPERATING SYSTEM
(2003 onwards)
Time : 3 hours Maximum : 100 marks
ans any 5 ques..
1. (a) Write in short about history of operating system.
(10)
(b) Discuss the structure of operating system. (10)
2. (a) Explain the subsequent :
(i) Race conditions
(ii) Semaphores. (5 + 5)
(b) What do you mean by process scheduling? discuss the Round Robin Scheduling? (10)
3. Discuss about the subsequent : (5 + five + five + 5)
(a) I/O devices
(b) Direct memory access
(c) Device drivers
(d) User-Space I/O software.
4. What do you mean by Deadlock? explain. (20)
5. Explain the subsequent :
(a) Monoprogramming without swapping or paging. (5)
(b) Multiprogramming with fixed partitions. (8)
(c) Multiprogramming with variable partitions. (7)
6. Write in detail about virtual memory. (20)
7. Write a note on the subsequent : (10 + 10)
(a) Directory structure
(b) Shared files.
8. Discuss the subsequent in protection mechanisms :
(a) Protection domain (7)
(b) Protection models (7)
(c) Convert channels. (6)


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Earning:   Approval pending.