VITRUALIZATION

Virtualization is a framework or methodology of dividing the resources of

a computer into multiple execution environments,
Done by applying one or more concepts or technologies such as:
hardware and software partitioning,
time-sharing,
partial or complete machine simulation,
emulation,
quality of service,
and many others.

“Virtualization is an abstraction layer that decouples the physical hardware

from the operating system to deliver greater IT resource utilization and flexibility.”

– www.vmware.com