Operating System (OS)
What is the function of an operating system ?

Manages compute's resources very efficiently
Manages the flow of data and instructions
Takes care of scheduling jobs for execution
All of the listed here

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Operating System (OS)
Semaphores

are used for memory management
are used to do I/O
synchronize critical resources to prevent contention
None of these
synchronize critical resources to prevent deadlock

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Operating System (OS)
Which of the following statements is not true about the FORTRAN language?

FORTRAN is a high level language
A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine
All of these
None of these
FORTRAN is extensively used to write programs for performing scientific computations

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Operating System (OS)
Virtual Memory

None of these
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.

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