Operating System (OS)
A critical region is

one which is enclosed by a pair of P and V operations on semaphores
a program segment where shared resources are accessed
a program segment that often causes unexpected system crashes
a program segment that has not been proved bug-free
none is the above

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

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