Multimedia is a combination of different media types like text, graphics, audio, video and animation that is delivered interactively. The key elements of multimedia are text, graphics, audio, video and animation. Multimedia can be linear with no user interaction or non-linear with user control. Authoring tools are used to develop multimedia content. Multimedia has various applications in business, education, entertainment and more. Common multimedia products include briefing products, reference products, databases, education/training products, kiosks and entertainment/games.