virtual machine

area of protected memory on which a program runs during multi-tasking while working in protected mode, VM

Virtual Machine Manager' redirects here. For the virtual machine monitoring application from Microsoft, see System Center Virtual Machine Manager In computer science, a virtual machine is software that creates a virtualized environment between the computer platform and its operating system, so that the end user can operate software on an abstract machine.
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<operating system> (VM) An IBM pseudo-operating system hypervisor running on IBM 370, ESA and IBM 390 architecture computers.
VM comprises CP (

<operating system> (VM/CMS) An IBM time-sharing and personal computing environment executing under Virtual Machine (VM) in a virtual machine environment. VM/CMS is designed to support large numbers of interactive users. It relies on numerous APIs into the Control Program (CP) to provide very efficient single-user processing
VM/CMS was only adopted some time after the original design of Virtual Machine as a more efficient personal computing environment than MVS/TSO.
(1999-01-19)

1. An abstract machine for which an interpreter exists. Virtual machines are often used in the implementation of portable executors for high-level languages. The HLL is compiled into code for the virtual machine (an intermediate language)