Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Controlling access to a shared printer in a network
Managing the access to system files in a laptop computers
Ensuring that system clock works correctly on server
Controlling the fuel injection system of an automobile engines

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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
None of these
execute first the job that has been in the queue the longest

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