How is virtual memory used in an OS?
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Virtual memory allows an operating system to use more memory than is physically available by temporarily transferring data from RAM to a hard disk. This process is known as paging or swapping. When a program needs access to data that is currently in virtual memory, the OS will swap it back into RAM where it can be quickly accessed by the CPU.
In an OS, virtual memory is used to allow programs to access more memory than is physically available. When a program needs to access data that is not currently in RAM, the OS temporarily transfers some data from RAM to a hard disk, freeing up space in RAM. This is known as paging or swapping. When the program needs the data again, the OS retrieves it from the hard disk and puts it back into RAM.
Virtual memory is a memory management technique used by operating systems (OS). It allows a computer to temporarily increase the capacity of its main memory - RAM - by using secondary memory such as a hard drive or solid-state drive (SSD). When an application or process is running on your computer, it needs to access data and instructions stored in memory. If there isn't enough RAM available to hold all the data and instructions that the application needs, the OS will move some of the data and instructions from RAM to the hard drive or SSD. This frees up space in RAM for other applications and processes to use. When the application needs the data or instructions that were moved to the hard drive or SSD, the OS moves them back into RAM.
Virtual memory work when we store anything in our device it is automatically stored in virtual memory so whenever we put up ID and password at any device it will automatically show your previous virtual memory which basicly means history and whatever data you had in your previous device that would be soon to you which is virtual memory in OS