A simple, unpowered instrument, such as a lever, pulley, or inclined plane, that is used for performing some kind of work by transmitting or changing the direction of energy.
A powered mechanical device, such as an automobile or drill press, that consists of a structure and various moving and unmoving parts and is for doing some kind of work.
An electronic device, such as a computer or facsimile machine, that can be thought of as operating on a mechanical basis. Such machines have automated many of the functions previously performed by humans. See also human.
See machine in Computer
Any electronic or electromechanical unit of equipment. A machine is always hardware; however, "engine" refers to hardware or software.