A machine is a device or system that performs a specific task. It can be as simple as a SLOT machine, which is a device that operates with the insertion of a coin, or as complex as an ENGINE, which is a device that converts energy into motion. A MECHANISM is a device that uses mechanical parts to perform a task, while a CONTRIVANCE is an invention or device created for a particular purpose. A CONTRAPTION is a device or machine that is made up of a combination of parts, and a GADGET is a small device or tool that performs a specific task. An IMPLEMENT is a tool or device used for a specific purpose, and MACHINERY is a collection of machines and tools used to perform a task. An AUTOMATON is a self-operating machine that is programmed to perform a specific task. Finally, a DRUDGE is a person who does tedious or unpleasant work.