Operating System (OS)
The FIFO algorithm

executes first the job with the least processor needs
executes first the job that last entered the queue
executes first the job that first entered the queue
execute first the job that has been in the queue the longest
None of these

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

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

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