Operating System (OS)
Which of the following is not essential to shut down your computer?

Switch off monitor
Close all running applications
Cut off the power supply
Save all opened files

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Operating System (OS)
The term "operating system" means

a set of programs which controls computer working
conversion of high level language into machine code
the way a floppy disk drive operates
None of these
the way a computer operator works

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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
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
None of these

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Operating System (OS)
A critical region is

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
one which is enclosed by a pair of P and V operations on semaphores

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