Multimedia   If you hear very clear voice over your telephone or see clear pictures, it is not just due to the quality telephone or televisions alone. The crystal clear sounds and images are due to the optical fibers that carry the information through light.     There are basically two types of multimedia categories. Linear and non-linear. The linear multimedia is where the users or the viewers cannot interact with the media such as a movie. The non-linear multimedia involves interactivity such as computer games, computer based training. Multimedia presentations can be live or recorded. Linear Presentation Non-Linear Interactive A live multimedia presentation may allow interactivity via interaction with the presenter or performer.   Different Features of Multimedia   Multimedia can be used for presentations or games or entertainment and a variety of other uses. Multimedia presentations can be projected or played locally using a media player. Multimedia can be used on internet using the streaming technology. This is nothing but live shows or on demand shows that can be viewed from anywhere in the world. Local Recorded Online Streaming Multimedia games are very popular and can be played in in person in an arena with special effects, with numerous users in an online network or set up, or locally with an offline computer or game system. A lasershow is a live multimedia performance Multimedia areas