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

T.E. (Information Technology) (Semester - V) Examination, 2007

OPERATING SYSTEM - I

Day and Date : Wednesday, 26-11-2008 Total Marks:100

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





Instructions: 1) ques. No. IV and V are compulsory.

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

3) Figures to the right indicate full marks.



SECTION - I



1. a) explain multiprogramming OS and Real Time OS with regard to memory management and I/O management. [Marks 8]



b) what are the USART mechanism in detail. [Marks 8]



2. a) provide the procedure of how polling is carried out in program controlled I/O. [Marks 8]



b) define in detail Multi-level queue scheduling. [Marks 8]



3. a) Write a short note on Programmable Interval Timer. [Marks 8]



b) discuss in details Interrupt vectoring. [Marks 8]



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

a) Functional requirements of the OS

b) Serial Processing vs. Batch Processing

c) Process control block

d) SRTN scheduling.



SECTION - II



5. a) Write short notes on any three:

a) Monitors

b) Messages

c) Redirection

d) Role of system administrator.



6. a) State and discuss the producer-consumer issue with unbounded buffer. [Marks 8]



b) What is scheduling ? discuss Time-slice scheduling. [Marks 8]



7. a) discuss the readers-writers issue of interprocess synchronization. [Marks 8]



b) discuss semaphore. How mutual exclusion can be achieved using semaphore ? [Marks 8]



8. a) discuss the login procedure for Linux/UNIX operating system. [Marks 8]



b) Enlist the various shells in UNIX. discuss any 1 in detail. [Marks 8]

Earning:   Approval pending.