Is it dangerous for a computer not to have virtual memory?

1. Virtual memory is also known as virtual memory. All programs running on the computer need to be executed through memory, and if the executed program takes up a lot of memory or a lot, it will cause the memory to be exhausted. To solve this problem, virtual memory technology is used in Windows, that is, a portion of the hard disk space is used as memory usage.

When the memory is depleted, the computer will automatically call the hard disk to act as memory to relieve the strain on memory. If the computer runs out of RAM required to run programs or operations, Windows compensates with virtual memory. It combines your computer's RAM with the temporary space on your hard drive.

When RAM runs slowly, it moves data from RAM into a space called a "paging file". Moving data into a paging file frees up RAM so you can get the job done. Generally speaking, the more RAM a computer has, the faster the program will run.

If your computer's rate is slowed down due to lack of RAM available space, you can try to compensate by adding virtual memory. However, computers can read data from RAM at a faster rate than from a hard drive, so expanding the RAM capacity (with memory sticks) is the best option.

Virtual memory is a portion of the hard disk space that Windows uses as memory. Virtual memory on the hard disk is actually a huge file with a file name, which is usually not visible. You must turn off Explorer's protection of system files to see them.

Virtual memory is sometimes referred to as a "page file" from the filename.

2. If you don't manually set the virtual memory in the Windows system, the system itself will specify the size and storage location of the virtual memory. Generally, it is a multiple of the physical memory and is stored on the system disk.

3. If the physical memory is small, you must specify the physical memory for the system, otherwise it is easy to crash, blue screen and other failures. If the physical memory is large enough, the system will rarely call the virtual memory.

Dude, every machine must be set up with virtual memory, take a look at the following, let you know more about virtual memory

Virtual memory uses hard disk space as memory to make up for the lack of RAM space in your computer. When the actual RAM is full (in fact, before the RAM is full), the virtual memory is created on the hard disk. When the physical memory is used up, the virtual memory manager selects the low-priority portion of the memory that has not been used recently and writes it to the swap file.

This process is hidden from the application, which treats the virtual memory as the same as the actual memory.

Each application running under Windows NT is allocated 4 GB of its own virtual address space (2 GB for the application and 2 GB for the operating system).

The problem with using virtual memory is that the speed at which the hard drive can be read and written is much slower than the actual RAM can be read or written. This is the reason why the program runs slowly when the NT system does not have enough memory.

Virtual memory is an active file that is cross-linked with file data. It is one of the windows directory""file, which is constantly expanding and shrinking automatically.

In terms of speed, the CPU has the fastest L1 and L2 caches, followed by memory, and the hard drive again. But virtual memory uses space from hard drives, so why should we use the slowest hard drive as virtual memory? Because all the programs running in the computer need to go through the memory to execute, if the programs executed are large or numerous, it will cause us to only have a pitiful 256m 512m memory exhausted.

In order to solve this problem, Windows uses virtual memory technology, that is, a part of the hard disk space is used as memory.

Set the virtual memory manually.

In the default state, the system is allowed to manage the virtual memory, but the management method of the system's default settings is usually conservative, which will cause the page file to be discontinuous during automatic adjustment, and reduce the read and write efficiency, and the work efficiency is not high, so there will often be a prompt like "insufficient memory", so let's set it up by ourselves.

Right-click on the "My Computer" icon on the desktop and select the "Properties" option in the context menu that appears to open the "System Properties" window. Click on the "Advanced" tab in the window, and a dialog box for advanced settings appears.

Click the "Settings" button in the "Performance" area and select the "Advanced" tab in the "Performance Options" window that appears to open its dialog box.

In this dialog box, you can see the area about virtual memory, click the "Change" button to enter the "Virtual Memory" setting window. Select a partition with a large free capacity, check the box before "Custom size", fill in the specific values in the "Initial size" and "Maximum" columns, then click the "Set OK" button, and finally restart the computer to make the virtual memory settings take effect.

If you have a lot of physical memory, you can run XP and commonly used applications without exceeding the physical memory. Generally speaking, it is enough for Windows to manage it itself.

Disadvantage 1: Occupies space on your hard drive. When the memory module capacity is insufficient, the system calls the hard disk space to use as virtual memory. The higher the virtual memory setting, the more space the system allows for the virtual memory to occupy on the hard disk.

Disadvantage 2: Accelerate the mechanical damage of the hard disk. When the memory module capacity is too low, the system will frequently call the hard disk space to use as virtual memory. Frequent reading and writing of the hard drive will accelerate the mechanical damage of the hard drive, which will reduce the life of the hard drive.