Types of hypervisors in Linux

What is a hypervisor? A hypervisor, also known as a Virtual Machine Monitor (VMM), is a software virtualization layer that allows you to create and run multiple virtual machines (VMs) on a single server, as well as run different operating systems in isolation. The physical server running the hypervisor is called the host machine, while each individual VM is called a guest machine. The term “hypervisor” was coined in the 1970s based on the concept of a supervisor in an operating system kernel. By adding the prefix “hyper-”, it is considered the supervisor of the supervisors.