An input device is a hardware device that sends data to a computer, allowing the user to interact with and control it. Examples of input devices include keyboards, mice, scanners, cameras, joysticks, microphones, and more. Input devices can be categorized based on the modality of input (e.g., mechanical motion, audio, visual, etc.) and whether the input is discrete (e.g., pressing a key) or continuous (e.g., a mouses position) .
Input devices are essential because they allow the user to use the computer and interact with it. Without input devices, there would be no way to change the computers settings, fix errors, or perform other various user interactions. Different types of input devices include:
- Keyboard: A keyboard is a device that allows the user to input text and commands into the computer by pressing keys.
- Mouse: A mouse is a pointing device that allows the user to move the cursor on the screen and select items by clicking buttons.
- Scanner: A scanner is a device that digitizes images or documents into the computer.
- Microphone: A microphone is a device that allows the user to input audio into the computer.
- Joystick: A joystick is a device that allows the user to control movement in games or simulations.
- Webcam: A webcam is a video input device that allows the user to capture video and images.
- Barcode reader: A barcode reader is a device that scans barcodes and inputs the data into the computer.
There are many other types of input devices, including light pens, trackballs, digitizers, and more.
