What are the different types of Hypervisor in Cloud Computing?

Hypervisors come in two main types:

  • Type-1, native or bare-metal hypervisors: Type 1 hypervisor runs directly on the hardware of host machine. It controls the guest operating system from host machine. It is also called bare metal hypervisor or native hypervisor.
    Examples of Type-1 are: Xen, Oracle VM Server for SPARC, Oracle VM Server for x86, the Citrix XenServer, Microsoft Hyper-V and VMware ESX/ESXi.
  • Type-2, hosted hypervisors: Type 2 hypervisor runs like a regular computer program on an operating system. The guest operating system runs like a process on the host machine. It creates an abstract guest operating system different from the host operating system.
    Examples of Type-2 are: VMware Workstation, VMware Player, VirtualBox, Parallels Desktop for Mac and QEMU are examples of type-2 hypervisors.
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