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Virtualization Deep Dive: Hypervisors and VM Management Virtualization lets you run several computer systems on one physical machine. The program that makes this possible is a hypervisor. There are two main types: Type 1, which runs directly on hardware, and Type 2, which runs on an existing operating system. Type 1 often delivers better performance and isolation, while Type 2 can be easier to set up for a home lab or small shop. Both types create virtual machines, or VMs, that behave like separate computers with their own CPU, memory, and storage. ...