A machine where the operating system runs an application on top of an operating system is called a virtual machine.
A Virtual Machine (VM) is known to be a kind of a tool that is known to often help one to be able to compute resource that make use of software to run programs and carry out apps.
An operating system (OS) is said to be the program that, is known to be one that is being first loaded into the computer as a result of a boot program, and it is one that handles all of the other application programs inside any computer.
Hence, A machine where the operating system runs an application on top of an operating system is called a virtual machine.
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