Virtual memory is an integral part of a modern computer architecture implementations usually require hardware support, typically in the form of a memory management unit built into the CPU.
Memory virtualization can be considered a generalization of the concept of virtual memory.
WINDOWS 10 VIRTUAL MEMORY MONITOR CODE
Virtual memory makes application programming easier by hiding fragmentation of physical memory by delegating to the kernel the burden of managing the memory hierarchy (eliminating the need for the program to handle overlays explicitly) and, when each process is run in its own dedicated address space, by obviating the need to relocate program code or to access memory with relative addressing. The primary benefits of virtual memory include freeing applications from having to manage a shared memory space, ability to share memory used by libraries between processes, increased security due to memory isolation, and being able to conceptually use more memory than might be physically available, using the technique of paging or segmentation.
WINDOWS 10 VIRTUAL MEMORY MONITOR SOFTWARE
Software within the operating system may extend these capabilities, utilizing, e.g., disk storage, 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. Address translation hardware in the CPU, often referred to as a memory management unit (MMU), automatically translates virtual addresses to physical addresses. The operating system manages virtual address spaces and the assignment of real memory to virtual memory. Main storage, as seen by a process or task, appears as a contiguous address space or collection of contiguous segments. The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory. In computing, virtual memory, or virtual storage is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory". Virtual memory combines active RAM and inactive memory on DASD to form a large range of contiguous addresses.
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