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Special software that creates the virtual hardware for devices in virtualization.
Hypervisor
An instance of virtual hardware created by a hypervisor, which can run a guest operating system.
Virtual machine (VM)
The operating system installed within a virtual machine, separate from the host operating system.
Guest OS
The underlying operating system of the physical computer, separate from the guest operating system.
Host OS
Bare-metal hypervisors that are installed as an operating system on a dedicated bare metal server.
Type 1 Hypervisors
Hosted hypervisors that are installed as an application on personal computers or laptops.
Type 2 Hypervisors
The decrease in performance experienced by Type 2 hypervisors due to competing for hardware resources with other applications and having to send hardware requests through the computer's operating system.
Performance Penalty
A virtual network card installed within a virtual machine to provide network access.
Virtual Network Adapter
The ability of hypervisors to keep each virtual machine and its virtual hardware isolated and independent from other virtual machines.
Isolation
A web-based interface used to access and manage a Type 1 hypervisor and the virtual machines running on it.
Administration Portal
