This document discusses hypertext, hypermedia, and multimedia. It defines hypertext as interconnected text within a network that uses underlined blue links or hyperlinks to connect to other texts. Hypermedia is similar but uses links to connect to various media like sound, images, videos. Multimedia uses multiple media types like text, images, sound, and video. Examples of multimedia programs that could help language learning are provided, like Spelling City which has interactive games and activities. The key difference is that hypertext only links to other texts, hypermedia links to two media types, while multimedia integrates several types of media.