Which of the following is not a mobile input device?

The device that is not a mobile input device is the Scanner. A mobile input device is a device that allows you to input data into a mobile device or a computer while you are on the go. Joystick, Light pen, and Mouse are all examples of mobile input devices. A joystick is an input device that is used to control the movement of objects on a screen, such as gaming characters or drones. A light pen is a device that allows you to draw or write on a screen by detecting the light emitted by the screen. It is often used in graphic design or art. A mouse is an input device that allows you to move a cursor on the screen, select items, and perform other tasks by clicking buttons. On the other hand, a scanner is an output device that allows you to scan and convert physical documents or images into digital formats. While you can use a scanner with a mobile device or a computer, it is not considered a mobile input device because it requires a flat surface and it is not designed for on-the-go use.