^^VM virtual machine. Hypervisor.


"bare-metal" or "type 1" hypervisor
run directly on the hardware
"hosted" hypervisor (sometimes referred to as a "type 2" hypervisor)
requires an existing operating system to be installed. It can thus run alongside existing applications on that host
Host operating system (host OS).
This is the operating system of the physical computer on which a hosted hypervisor is  installed.
Guest operating system (guest OS)
This is the operating system that is running inside the virtual machine.




VirtualBox e' la VM suggerita da Sage