In Virtual memory management, demostrate one of the page replacement algorithms.

FIFO Page Replacement algoritm.

the FIFO algorithm means that when the memory is  full, the system will replace the memory where first allocated. Then the second...and so on. This Page Raplacement algorithm is very easy to understand. But there is a problem of this algorithm that we acctually don't know if the memory is used currently, so that it may be random for all the page that we don't care about the state of every page. This will lead to a low efficiency of the operating system.