开启电脑虚拟机有啥不好的地方(怎样才能在电脑上开启虚拟机)

The reasons why virtual machines are not harmful to computers are as follows:
A virtual machine is actually just a piece of software, which simulates another computer on one computer. It is just computer software, so if operated correctly, it will not have a bad impact on the system and hardware.
Advantages of virtual machines:
1. A virtual machine can virtualize another system on the computer to test the performance of various software under the system, but there is no need to open it. Another computer, which greatly saves resources;
2. The virtual machine avoids the risk of the entire system crashing due to the failure of the virtual system. Even if the system installed in the virtual machine crashes, Just completely uninstall the virtual machine without affecting the original system.

In fact, virtual machines are not harmful to computers.

A virtual machine is actually just a piece of software that simulates another computer on one computer. Therefore, if operated correctly, it will not have a bad impact on the system and hardware.

Any work that can be done on a physical computer can be done on a virtual machine. When creating a virtual machine on a computer, you need to use part of the physical machine's hard disk and memory capacity as the virtual machine's hard disk and memory capacity. Each virtual machine has an independent CMOS, hard disk and operating system, and the virtual machine can be operated like a physical machine.

Main uses:

1. Demonstration environment. Various demonstration environments can be installed to facilitate making various examples.

2. Ensure the fast operation of the host and reduce unnecessary junk installation programs, occasionally used programs, or testing programs running on the virtual machine.

3. Avoid reinstalling every time. Common tools such as banks are not used frequently and require better confidentiality. They should be run in a separate environment.

4. If you want to test unfamiliar applications, you can install them in the virtual machine and delete them completely.

5. Experience different versions of operating systems, such as Linux, Mac, etc.

Reference for the above content: Baidu Encyclopedia-Virtual Machine

The disadvantages of virtual machines may be that there may be problems with the compatibility of PCI cards, ISA cards, some USB devices, COM and parallel port devices. Sometimes it is a bit slow to read data, and the Internet is a bit slow, and there are also reactions. I can't play some games, or sometimes get stuck while watching movies.
In addition, there is a graphics card. For jobs that require a graphics card, virtual machines are not recommended.
When you encounter the above problems when using virtual machines, you can consider restoring when there was no virtual machine before, but you must pay attention to following the correct recovery method.
A virtual machine refers to installing and using specialized virtual machine software (commonly used are VMWARE and Microsoft's VPC) to virtualize a number of computers based on the operating system you are currently using (2000, XP). These virtual machines Each of the multiple computers has its own CPU, memory, hard disk, optical drive, floppy drive, network card, sound card, keyboard, mouse, serial port, parallel port, USB port and other "hardware" devices. Of course, these hardware are all virtual, in fact they are still Use the appropriate hardware in your computer. These virtual computers can run independently, install their own operating systems, application software, anti-virus software, etc., and use them just like you normally use your computer. You can also connect them into a network.