The document discusses multimedia and provides definitions, history, categorization, types, features, platforms, visuals used, advantages, and disadvantages. Multimedia is defined as media that uses a combination of different content forms like text, audio, images, videos and interactivity. It briefly outlines the history of the term and how it has evolved over time to include digital media. It also categorizes multimedia as linear or non-linear and lists common file types used like MOV, MP4 and JPG. The key features of multimedia are also identified as text, audio, images, video, animation and interactivity.