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Schematic diagram of the application of virtual memory management:
left: virtual memory space per process memory is linear and unfragmented
right: real memory sources, typically RAM or hard drive, several, small memory fragments can be used; in red memory usage of other processes, invisible in the virtual memory space
The virtual memory management (engl. Virtual memory management, VMM) is a special memory management in a computer. The translation of the English term represents a hypallage - not the administrative process, but the memory is to be managed virtually. The virtual memory refers to the fact independent of the existing memory address space that is provided to a process by the operating system.
The concept originated in the 1950s and is now found in almost all modern operating systems use.
