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Virtual memory
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== Properties == Virtual memory makes application programming easier by hiding [[Fragmentation (computer)|fragmentation]] of physical memory; by delegating to the kernel the burden of managing the [[Computer data storage#Hierarchy of storage|memory hierarchy]] (eliminating the need for the program to handle [[overlay (programming)|overlays]] explicitly); and, when each process is run in its own dedicated address space, by obviating the need [[Relocation (computer science)|to relocate]] program code or to access memory with [[Addressing mode#PC-relative|relative addressing]]. [[Memory virtualization]] can be considered a generalization of the concept of virtual memory.
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