04-09-2012, 01:47 PM
END TERM EXAMINATION
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Q.1 (a) Define operating system.
(b) What is Race condition?
© Define physical file system.
(d) What is job scheduling?
(e) What is a device controller?
(f) What is an interrupt vector?
Q.2 Describe various function of an operating system briefly.
Q.3 Explain the following briefly: -
(a) Segmented Memory Management
(b) Paged Memory Management
© Relevance of Multiprogramming to Memory Management
Q.4 (a) Define Semaphores. How these are useful and used? Explain with examples.
(b) What are the various criteria to be taken for selecting a scheduling policy?
Explain briefly with example.
Q.5 Differentiate between the following: -
(a) Multiplexing and Buffering
(b) Channels and Controls Units
© Dedicated and Shared devices
Q.6 (a) Differentiate between logical and physical file system with their relative merits and demerits.
(b) Describe the concept of fragmentation briefly.
Q.7 Write short notes on the following: -
(a) Virtual devices
(b) Direct Memory Access (DMA)
© Symbolic file system