This document discusses interactive media such as the internet, video games, and augmented reality. It defines interactivity as communication between two or more parties through an ongoing exchange of messages. Interactive media encourages learning and exploration while changing concepts of narrative compared to traditional top-down mass media. The development of user interfaces from early keyboards and mice to modern touchscreens and gestures is described. The evolution of the internet and world wide web from early protocols to broadband and the modern graphical web is also summarized.