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This article will explain in detail what is the purpose of using virtual memory in computers. Xiaobian thinks it is quite practical, so share it with you as a reference. I hope you can gain something after reading this article.

The purpose of using virtual memory is to expand the capacity of memory (i.e. addressing space). Generally speaking, the larger the RAM capacity of a computer, the faster programs run. If your computer's speed slows down due to lack of RAM space available, try to compensate by adding virtual memory.

The purpose of virtual memory is to expand the capacity of memory (i.e. addressing space). Unify main memory and external memory into a whole. On the whole, the speed depends on main memory and the capacity depends on external memory.

Virtual memory makes an application think that it has a contiguous amount of available memory (a contiguous, complete address space), when in reality it is often divided into physical memory fragments, with portions temporarily stored on external disk storage for data exchange when needed. At present, most operating systems use virtual memory, such as Windows family "virtual memory";Linux "swap space" and so on.

All programs running in the computer need to be executed through memory, and if the execution of programs takes up a large or large amount of memory, it will lead to memory consumption. To solve this problem, Windows uses virtual memory technology, which allocates a portion of hard disk space for memory use. When memory runs out, the computer will automatically call the hard disk to act as memory to relieve memory tension. If the computer does not have enough random access memory (RAM) to run programs or operate, Windows compensates with virtual memory. It combines the computer's RAM with temporary space on the hard disk. When RAM runs slowly, it moves data from RAM into a space called a paging file. Moving data into paging files frees RAM for work to be done. Generally speaking, the larger the RAM capacity of a computer, the faster the program runs. If your computer's speed slows down due to lack of RAM space available, try to compensate by adding virtual memory. However, computers can read data from RAM faster than they can from hard disks, so expanding RAM capacity (by adding memory sticks) is the best option.

Virtual memory is a portion of hard disk space that Windows uses as memory. Virtual memory on the hard disk is actually a huge file, the file name is PageFile.Sys, usually invisible. You must turn off protection of system files in Explorer to see this file. Virtual memory is sometimes referred to as a "page file" from the file name of this file.

Memory plays a big role in computers. All programs running in computers need to pass through memory to execute. If the programs executed are large or many, they will lead to memory exhaustion. In order to solve this problem, WINDOWS uses virtual memory technology, that is, take out a part of the hard disk space to act as memory use, this part of the space is called virtual memory, virtual memory on the hard disk exists in the form of PAGEFILE.SYS this page file.

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