Briefly explain FCFS?
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FCFS stands for First Come First served. In the FCFS scheduling algorithm, the job that arrived first in the ready queue is allocated to the CPU and then the job that came second and so on. FCFS is a non-preemptive scheduling algorithm as a process that holds the CPU until it either terminates or performs I/O. Thus, if a longer job has been assigned to the CPU then many shorter jobs after it will have to wait.
FCFS stands for first come first serve. it is a page replacement algorithm used by the system. in this algorithm, the page that came first will removed whenever there is no more frames creating a page fault.