A virtual machine is a computing resource that uses software instead of a physical computer to run programs and deploy applications. It operates by running one or more virtual “guest” machines on a ...

A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.