Shivaji University 2007-5th Sem B.E Information Technology T.E , 2008 - Question Paper

T.E. (Information Technology) (Semester - V) Examination, 2008

OPERATING SYSTEM - I

Day and Date : Wednesday, 21-11-2007 Total Marks:100

Time : 10.00 a.m. to 1.00 p.m.



Instructions: 1) ques. I and V are compulsory.

2) Attempt remaining any 2 ques. from every part.

3) Figures to the right indicate full marks.





SECTION - I



1. Write short notes on (any three) : [Marks 18]

a) ISR

b) Multiprogramming

c) Round Robin Scheduling

d) Scheduling and Perormance Criterias.



2. a) Compare in detail time sharing systems with real time systems. [Marks 8]



b) discuss in detail command language users view of operating system. [Marks 8]



3. a) elaborate the various kinds of schedulers? discuss every in detail. [Marks 8]



b) define multiple level queues with feedback scheduling algorithm. [Marks 8]



4. a) discuss in brief concurrent I/O. [Marks 8]



b) explain the levels of Interrupt control in detail. [Marks 8]



SECTION - II



5. Write a short note on any 3: [Marks 18]

a) Deadlock

b) Monitors

c) Test and set instructions

d) Unix shells



6. A) Write and discuss three algorithms for mutual exclusion. provide advantages and disadvantages of every. [Marks 10]



B) With an example, define the compare and swap instruction. [Marks 6]



7. A) discuss the booting process of LINUX or UNIX Operating Syatem. [Marks 8]



B) discuss the standard Input and Output redirection. [Marks 8]



8. A) explain the various problems in message implementation. [Marks 8]



B) what are the properties and characteristics of semaphores. [Marks 8]

Earning:   Approval pending.