Alternative input devices are tools that allow users to interact with computers and other digital devices in ways other than traditional keyboards and mice. These devices can include touchscreens, styluses, trackballs, and voice recognition systems. They are designed to accommodate different needs, preferences, and abilities, making technology more accessible to a wider range of users. Some alternative input devices are specifically created for individuals with disabilities. For example, adaptive switches can help those with limited mobility control devices, while eye-tracking technology allows users to navigate screens using their eye movements. These innovations enhance user experience and promote inclusivity in technology.