Which concept is central to the use of special-purpose keyboards in assistive technology?

The central concept of special-purpose keyboards in assistive technology is indeed the incorporation of custom features to accommodate specific disabilities. These keyboards are designed to enhance accessibility for individuals with various needs, ensuring that the unique physical and cognitive challenges faced by these users are addressed effectively.

Custom features can include large keys for users with limited dexterity, alternative layouts for those who struggle with standard keyboards, or added functionality tailored for specific tasks or conditions. By focusing on the individual requirements of users, these keyboards improve usability, enhance comfort, and provide a more inclusive technology experience.

This focus on customization is essential in assistive technology, as it allows for a more targeted approach to accessibility, ensuring that users can interact with technology in a way that meets their specific needs.