Operating System (OS) The primary purpose of an operating system is to: keep system programmers employed allow people to sue the computers make computer easier to use None of these make the most efficient use of the hardware keep system programmers employed allow people to sue the computers make computer easier to use None of these make the most efficient use of the hardware ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Indicate which is a pre-emptive scheduling algorithm Round-robin Shortest-job-next None of these All of these Priority-based Round-robin Shortest-job-next None of these All of these Priority-based ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The part of machine level instruction, which tells the central processor what has to be done, is Address Flip-Flop Operation code Locator None of these Address Flip-Flop Operation code Locator None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) A tiny Dot of light on the monitor is called Optical illusion Pixel Icon Silicon chip Optical illusion Pixel Icon Silicon chip ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Under multiprogramming, turnaround time for short jobs is usually _____ and that for long jobs is slightly _____. shortened; shortened lengthened; lengthened None of these lengthened; shortened shortened; lengthened shortened; shortened lengthened; lengthened None of these lengthened; shortened shortened; lengthened ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which one of the following key is used to refresh the active window? F9 F5 F7 F8 F9 F5 F7 F8 ANSWER DOWNLOAD EXAMIANS APP
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