Operating System (OS)
Supervisor state is

None of these
only allowed to the operating system
required to perform any I/O
entered by programs when they enter the processor
never used

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Operating System (OS)
Which of the following statements is not true about the FORTRAN 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
FORTRAN is a high level language
FORTRAN is extensively used to write programs for performing scientific computations
None of these

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Operating System (OS)
Thrashing can be avoided if

the speed of CPU is increased
All of these
the pages, belonging to the working set of the programs, are in main memory
the speed of I/O processor is increased
None of these

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