Описание тега virtual-machine
A virtual-machine is software emulating complete computer hardware. There are various applications that supply this functionality.
**Note**: For questions on the Java VM, use the specific tag [jvm], and for the Android virtual machine, use the tag [dalvik]. For other questions on implementation details of other kinds of VMs like interpreters, automata or Turing-machines, use the tag [vm-implementation]. ONLY QUESTIONS ABOUT PROGRAMMING ARE ON-TOPIC.
If you need non-programming help setting up a virtual machine, ask those questions on Server Fault or Super User.
A virtual-machine is software emulating complete computer hardware. There are various applications that supply this functionality.
The term virtual-machine can be used for a single file containing the software which emulates all the hardware. Virtual-machine software use various hardware and software tricks to speed up the running software.
Programs run on a real machine do not need to be changed to be run on a virtual machine. A program running on a virtual machine works exactly the same as if it were running on its own hardware.
Some virtual machine software include: