All the options listed are output devices, except for the "Joystick."
An output device is a piece of computer hardware that is used to produce information in a form that can be seen or heard by the user. A monitor, plotter, and printer are all examples of output devices.
A monitor displays images and text on a screen. A plotter is a type of printer that is used to produce high-quality graphics, such as technical drawings and architectural plans. A printer is used to produce a hard copy of a document, such as a printed page.
A joystick, on the other hand, is an input device. An input device is a piece of computer hardware that is used to enter data into a computer. A joystick is used to control the movement of objects in computer games and other applications.
So, of the options listed, the "Joystick" is not an output device.