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Memory management of OS, Different levels in the hierachy of memory…
Memory management of OS
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Virtual memory
a. Segmentation
advantage = allows the operating system to better manage its memory use and improve the performance of the system
disadvantage = it can have external fragmentation
b. Paging
advantage = Paging is an easy to use algorithm for memory management.
disadvantage = Multi-level paging can cause memory reference overhead.
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