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What is a Hypervisor? Hypervisor architecture overview

Hypervisor, also known as a virtual machine monitor, is a process that creates and runs virtual machines (VMs). A hypervisor allows one host computer to support multiple guest VMs by virtually sharing its resources, like memory and processing. Generally, there are two types of hypervisors. Type 1 hypervisors, called “bare metal,” run directly on the host’s hardware. Type 2 hypervisors, called “hosted,” run as a software layer on an operating system, like other computer programs. 

Why use a Hypervisor?

Hypervisors make it possible to use more of a system’s available resources, and provide greater IT mobility, since the guest VMs are independent of the host hardware. This means they can be easily moved between different servers.

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