This refers to the Americans with Disabilities Act. Section 508 of this act covers electronic communications, specifically that web pages need to be understandable to people who are hearing, visually or otherwise impaired. For example, images on a web page need to have a text description (Alt Tag) so that a screen reader can translate …
This term refers to a site that can be displayed in multiple languages.
This software is for speaking on-screen information or outputting the info to a Braille display.