COMPUTER FUNDAMENTALS

Detailed explanation-1: -In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.

Detailed explanation-2: -A joystick is an input device that can be used for controlling the movement of the cursor or a pointer in a computer device. The pointer/cursor movement is controlled by maneuvering a lever on the joystick. The input device is mostly used for gaming applications and, sometimes, in graphics applications.

Detailed explanation-3: -scanner, also called optical scanner, computer input device that uses a light beam to scan codes, text, or graphic images directly into a computer or computer system.

Detailed explanation-4: -Scanner, Joystick, Keyboard are also input devices. Scanner scans a printed document. Mouse, keyboard and joystick are input devices which work because of humans moving the devices. Data entered into computer through keyboard and mouse is an example of input.