The document discusses hypertext, hypermedia, and multimedia. It defines hypertext as text that links to other information sources allowing users to jump between content. Hypermedia builds on hypertext by linking multimedia elements like sound and photos together. Multimedia combines different media types like graphics, photos, sound, and video into interactive systems. The widespread use of multimedia and hypermedia in education indicates classrooms will increasingly rely on these technologies in the future to motivate students and develop skills like creative thinking and improved writing.