Universal usability issues of textual information structures, commands, and languages of native visually challenged users

Current textual languages (e.g., textual information structures, command and query languages, and programming languages) are neither accessible nor adaptable to the computing requirements of native visually challenged users. In this paper, we identify semantic, syntactic, linguistic and cognitive issues and accessibility factors at various level of human-computer interaction and proposes a inclusive, universal design framework, that enables not only linguistically handicapped users but also visually challenged users to command and operate computers, and learn programming.