Hypermedia is an extension of hypertext that allows for multimedia content like sound and video. It can be used as both a noun to describe a medium with multiple content forms, or as an adjective to describe a medium. Most educational IT applications are hypermedia, including tutorial software, knowledge webpages, and simulation instructional games. Hypermedia presents information and learning activities in a non-linear manner, allowing learners to control their navigation route and pace. While powerful, hypermedia does not replace real-world experiences.