A operating system runs on top of the virtual hardware provided by the host.

Each virtual machine has its own , which can be different from the host system.

Snapshots in virtual machines allow users to the current state and revert back later.

A is a software emulation of a physical computer.

The performance of virtual machines can vary based on the allocated to them.

Virtualization allows for the creation of a environment that emulates physical hardware.

Virtual machines are commonly used for new software in a safe environment.