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1 Ans What is virtual memory?

Asked by Birds of the sky (1 Gold) Wednesday, 01 Jul 2020, 02:56 PM at (Education Engineering)

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 Virtual memory is a memory management technique that is implemented using both hardware and software. It maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory. Main storage as seen by a process or task appears as a continuous address space or collection of contiguous segments. The OS manages virtual address spaces and the assignment of real memory to virtual memory. Address translation hardware in the CPU, often referred to as a memory management unit or MMU, automatically translates virtual addresses to physical addresses. Software within the OS may extend these capabilities to provide a virtual address space that can exceed the capacity of real memory and thus reference more memory than is physically present in the computer.     

Answered by Birds of the sky (1 Gold) Wednesday, 01 Jul 2020, 02:58 PM

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