Computer accessibility, often abbreviated as a11y, focuses on making computer systems usable for all individuals, regardless of their disability type or severity. This critical field addresses challenges posed by diverse impairments, including cognitive (like dyslexia), visual (like blindness), hearing (like deafness), and motor/dexterity issues, which can be congenital or acquired.

To achieve this, it employs common features like text-to-speech, closed-captioning, and keyboard shortcuts, alongside specialized assistive technologies. For instance, screen readers provide auditory feedback for the visually impaired, while personalized smart cards can adjust settings for users with cognitive disabilities. Closely tied to web accessibility, the overarching goal is to ensure digital inclusivity and equal access to information and technology for everyone.