Define input device An input device is a piece of hardware used to send data or control signals to a computer or other digital system. It allows users to interact with and provide information to the computer. Examples of input devices include: Keyboard – used to enter text and commands. Mouse – used to point, click, and drag on the screen. Scanner – converts physical documents into digital format. Microphone – captures audio input. Camera – captures images or video input. Touchscreen – allows input through direct touch on the display. Summary definition: An input device is hardware that allows a user to enter data or control signals into a computer. Define output device An output device is a piece of hardware that receives data from a computer and presents it in a human-readable or usable form. It allows the computer to communicate the results of its processing to the user. Examples of output devices include: Monitor – displays visual output like text, images, and videos. ...