What does WIN7 virtual machine mean

Virtual machine. It is a kind of software, after installation, you can install the system you want in your virtual machine, such as 2003, 2008, XP, Win7, as long as you have a system disk.

In general, a virtual machine is also a computer, and you can operate it as you like after installing the system.

I think that if you meet any software on the Internet and don't know what software, you can use it on a virtual machine.

See what exactly the software is.

And even the virus can't affect you.

Host. Only virtual machines can be affected.

Simulate another system running in this system.

For example, the flagship version of Win7 simulates WinXP running in it.

xpmode.

It is to open a window in win7.

Inside simulates win

XP's environment.

This requires a CPU branch.

Holding virtual mode requires a relatively large memory and a relatively fast CPU, otherwise it will be very stuck.

So the general machine uses win7

XPmode simulates the XP environment to play games, which is very unpleasant.

Virtual machines in win7?

It's about emulating another system running in that system.

For example, the ultimate version of WinXP in Win7 can emulate WinXP running in it.

xpmode.

It is to open a window in win7.

Inside simulates win

XP's environment.

However, this requires the CPU to support virtual mode, and it requires a relatively large memory and a relatively fast CPU, otherwise it will be very stuck.

Therefore, it will be very uncomfortable for the general machine to use the XP environment of Win7 XP to simulate the XP environment.

A virtual machine is a complete computer system running in a completely isolated environment with full hardware system functions simulated by software. Each virtual machine has its own CMOS, hard disk, and operating system, and can be operated on the virtual machine as if it were a physical machine.

It is possible to virtualize an operating system with the same operating system as the computer operating system, and the same as the computer system, you also need to install the operating system to use, we use the virtual machine for system packaging, testing, the virtual machine has high hardware requirements, and the configuration is not low. . .

A virtual machine (VM) is an operating system that shares the physical resources of a server. It is the guest on the host hardware and hence is also known as the guest virtual machine.

A virtual machine is made up of several layers. The virtualization-enabled layer is a type of software that virtualizes servers.

How does a virtual machine work.

Everything you need to run your application is contained in the virtual machine – the virtualized hardware, the operating system, and any required binaries and libraries. As a result, virtual machines have their own independent infrastructure.

Benefits of virtual machines.

Virtual machines reduce spending on server equipment, allowing a physical server resource to be split into multiple independent virtual machines to do a lot of work. With only one host, you can efficiently manage all your virtual environments with the centralized capabilities of the hypervisor. These systems are completely independent of each other, which means that you can install different system environments in different virtual machines.

On top of that, virtual machines are isolated from the host operating system and are a safe place to experiment and develop applications.

Disadvantages of virtual machines.

Virtual machines can consume a lot of the host's system resources, and the size of the virtual machine is several gigabytes. Running a single application on a virtual server means also running a virtual copy of the guest OS and all the hardware required for the guest OS to function. This quickly increases the consumption of a lot of RAM and CPU resources.

The process of migrating an application running on a virtual machine can also be complicated because it is always attached to the operating system. As a result, applications and operating systems must be migrated at the same time. Similarly, when a virtual machine is created, the hypervisor allocates hardware resources dedicated to the VM.

However, this is still economical compared to running a separate physical server.

A virtual machine is actually a piece of software that simulates the installation of a "system" on top of an existing system, and it does not affect the original system, it can do anything but not affect the computer itself.

It's a virtual computer on the computer.

A virtual machine is a complete computer system running in a completely isolated environment with full hardware system functions simulated by software.

At present, the popular virtual machine software includes VMware, VirtualBox and VirtualPC, which can virtualize multiple computers on the Windows system, each virtual computer can run independently, and various software and applications can be installed. The role of virtual machines in reality is still quite large, for example, there is no optical drive in the simplest of our computers, if you want to install the system, you can use the virtual machine to install the system, the virtual machine has a virtual optical drive inside, and you can directly open the system image file to install the system.

In addition, virtual machine technology is also quite practical in the eyes of game lovers, for example, many games on a computer do not support multiple openings at the same time, but we can create several more virtual machines in the computer, then you can run the program separately in the virtual machine system, so that you can open the same game on one computer at the same time.

The main role of a virtual machine:

Demo environment, you can install various demo environments, which is convenient for making various examples.

Keep the host running fast and reduce unnecessary junk installers, occasionally used programs, or test programs running on virtual machines.

Avoid running under a separate environment every time you reinstall common tools such as banks, which are not used often, and require better confidentiality.

I want to test an unfamiliar application, install it in a virtual machine, and delete it completely.

Experience different versions of the operating system, such as Linux, Mac, etc.

The main function of the virtual machine is to use it for experimentation. Virtual machines can do a variety of experiments, including: some "destructive" experiments.

For example, you need to repartition, format, and reinstall the operating system of the hard disk. Some experiments that need to be "networked". The use of virtual machines allows students to easily set up an experimental environment with "one machine in each person's hands"; Some experiments that do not have the conditions. Using VMwareWorkstation, you can implement some experiments that require network speed and network conditions.