The architecture of the virtual machine, briefly describing the architecture and characteristics of

Virtualization [1] is a broad term that refers to the operation of computing elements on a virtual basis rather than on a real basis, and is a solution to simplify management and optimize resources. Just like an empty and transparent office building, there are no fixed walls on the entire floor, and users can build a more autonomous and applicable office space at the same cost, thereby saving costs and maximizing the utilization of space. This idea of re-planning limited fixed resources according to different needs to achieve maximum utilization is called virtualization technology in the IT field.

Virtualization technology can expand the capacity of hardware and simplify the process of reconfiguring software. CPU virtualization technology can emulate multiple CPUs in parallel with a single CPU, allowing one platform to run multiple operating systems at the same time, and applications can run in independent spaces without affecting each other, thus significantly improving the efficiency of the computer. Virtualization technology is completely different from multitasking and hyper-threading technology.

Multitasking refers to the simultaneous parallel running of multiple programs in an operating system, while in virtualization technology, multiple operating systems can be run at the same time, and there are multiple programs running in each operating system, and each operating system runs on a virtual CPU or virtual host; The hyper-threading technology only simulates a single CPU and two CPUs to balance the performance of the program, and the two simulated CPUs cannot be separated, but can only work together. Virtualization is also a huge technological advancement in terms of reducing the overhead associated with software virtual machines and supporting a wider range of operating systems, unlike VMware Workstation that also achieves virtual virtual effects. There are many definitions of virtualization technology, and some of them are given below.

Virtualization is the process of representing computer resources in a way that both users and applications can easily benefit from, rather than in terms of their implementation, geographic location, or proprietary way of physical wrapping. In other words, it provides a logical, rather than physical, view of data, computing power, storage resources, and other resources. ” jonathan eunice， illuminata inc。

Virtualization is the process of representing logical groups (or subsets) of computer resources so that they can be accessed in a way that benefits from the original configuration. This new virtual view of resources is not limited by implementation, geography, or the physical configuration of the underlying resources. "Wikipedia" virtualization:

Provides a common set of abstract interfaces for a similar set of resources, hiding differences between properties and operations, and allowing resources to be viewed and maintained in a common way. ” open grid services architecture glossary of terms。

The virtual system is a new virtual pseudo-image of the existing operating system generated by Zen State, and He Jianyuan has the same function as the existing operating system, and has an operating system that can flexibly switch between the existing system and the virtual image.