What is virtual memory and what does virtual memory mean???

The upstairs has said it, and it's right, you can see it, haha.

To put it simply, it is to divide an area on the hard disk as memory. It's called virtual memory.

1.Virtual memory is just a logical model of a very large amount of memory, not any actual physical memory. It uses secondary storage such as disks to expand the main memory capacity so that it can be used by larger or more programs.

It refers to the primary-extrinsic level. In a transparent way, the user is provided with a much larger program address space than the actual main memory space.

2.All programs running on the computer need to go through memory to execute, and if the programs are large or numerous, the memory will be exhausted. In order to solve this problem, virtual memory technology is used in Windows, that is, a part of the hard disk space is used as memory, and when the memory is occupied, the computer will automatically call the hard disk to act as memory to relieve the tension of memory.

3.For example, if the computer only has 128MB of physical memory, when reading a file with a capacity of 200MB, it must use a relatively large virtual memory, and the file will be stored in the virtual memory after being read by the memory, and then the files stored in the virtual memory will be released into the original installation directory. Generally speaking, the hard disk is equivalent to the parking lot, the memory is equivalent to the channel of the parking lot, when the channel is not enough (too many cars), it is necessary to go to the parking lot to temporarily borrow a little to use, borrow a little space, that is, we talk about virtual memory, often borrow and return, virtual memory will inevitably have pressure, it will prompt too small or not enough, most users are using the best virtual memory by default of the system, there is no need to change.

Categories: Computer, Networking, >> Software.

Resolution: If your computer is running at a lower RAM and immediately needs more RAM, Windows uses hard disk space to emulate your system's RAM. This is called virtual memory, often referred to as a page file.

The page file is similar to Unix's "swap file". The default size of the virtual memory page file named "is times the RAM size on the computer.

When Windows was originally designed to use virtual memory, it was designed because physical memory is expensive, generally not exceeding 128MB capacity, and requires hard disk space for temporary buffering - that is, you should compare how much physical memory you need for your application to the memory you actually have, and if you actually have less memory than the application peak, you will run into trouble.

Generally speaking, if you want to perform data-intensive tasks such as large plane drawings and 3D animation rendering, you should not disable virtual memory. If you often have to print documents with a large number of **, disabling virtual memory can also cause errors in the program. Because software such as word needs to generate buffer files before printing, and then transfer to the printer, when the size is large and the resolution is high, the buffer capacity required is also very large, and the author used to help advertising artists to produce design drawings, and encountered the situation of printing a picture to generate nearly 300MB temporary files. Because Windows and the application itself also require a certain amount of memory to run, if you are in a 512MB configuration and disable the virtual memory, it is very likely that the source of the mine will report that the virtual memory is insufficient, and the forced exit will cause a waste of printed paper and ink.

Therefore, it is important to decide whether to disable virtual memory or not depending on the environment in which your task is applied. Even if the virtual memory size is fixed, you must be cautious, otherwise when running large application software, the virtual memory is insufficient prompt, and the whole system will become very slow due to the extremely high CPU occupancy, and it is not so convenient to change it at this time.

Not "free" because data has been cached and the system will use spare memory (i.e., cache that can be cleared) in "available" when needed, not no memory available.

It is normal for the free memory of the Windows system to be close to zero, unless it is a specially optimized system with very few processes. Ruler denier.

So-called. Virtual memory.

It's about using hard disk space to make up for your computer.

Physical memory. Insufficient technology.

Some programs (mainly relatively large programs) require more memory to run in order to run such programs with relatively small physical memory, and a part of the hard disk space is used to virtualize memory. Since hard drives are much slower than memory, this comes at the expense of some speed.

The main thing that doesn't answer: increase the memory space.

on Windows

98 (xp similar), the settings of the virtual memory can be accessed through the My Computer properties of the system performance.

tab. There are two ways, one is Windows system management (recommended), and the other is for the user to set the size of the virtual memory, which is usually recommended to be about 2 times the size of the state-sensitive physical memory.