diff --git a/docs/en/docs/Virtualization/introduction-to-virtualization.md b/docs/en/docs/Virtualization/introduction-to-virtualization.md index c32dbb9e303968260b138bdffc98a0b9337fcebc..17337b391258ed2b8934a28d9b4a5bab739e74ae 100644 --- a/docs/en/docs/Virtualization/introduction-to-virtualization.md +++ b/docs/en/docs/Virtualization/introduction-to-virtualization.md @@ -2,7 +2,7 @@ ## Overview -In computer technologies, virtualization is a resource management technology. It abstracts various physical resources \(such as processors, memory, disks, and network adapters\) of a computer, converts the resources, and presents the resources for segmentation and combination into one or more computer configuration environments. This resource management technology breaks the inseparable barrier of the physical structure, and makes these resources not restricted by the architecture, geographical or physical configuration of the existing resources after virtualization. In this way, users can better leverage the computer hardware resources and maximize the resource utilization. +In computer technologies, virtualization is a resource management technology. It abstracts various physical resources \(such as processors, memory, disks, and network adapters\) of a computer, converts and presents the resources for segmentation and combination into one or more computer configuration environments. This resource management technology breaks the inseparable barrier of the physical structure, and makes these resources not restricted by the architecture, geographical or physical configuration of the existing resources after virtualization. In this way, users can better leverage the computer hardware resources and maximize the resource utilization. Virtualization enables multiple virtual machines \(VMs\) to run on a physical server. VMs share resources such as processors, memory, and I/O devices of physical machines, but are logically isolated from each other. In the virtualization technology, the physical server is called a host machine, the VM running on the host machine is called a guest, and the operating system \(OS\) running on the VM is called a guest OS. A layer of software, called the virtualization layer, exists between a host machine and a VM to simulate virtual hardware. This virtualization layer is called a VM monitor, as shown in the following figure.