Computer demos should not be confused with the demo versions of commercial programs. They are demos too, but the word demo in this text means a program whose purpose is to present the technical and artistic skills of its makers and produce audiovisual pleasure to the viewer. A computer demo usually includes various kind of realtime produced computer graphics effects which have little relation to each other accompanied by music. In a way a demo could be described as a sort of music video or a short computer animation film without a plot or message other than just hey, I can do this and greetings to my friends. Of course there is exception to every rule and some demos have a plot and message. An important distinction between demos and movies or videos is that the visual effects seen in demos are realtime calculated, instead of rendered in beforehand like conventional computer animations where often hours of computer time are spent to calculate just one frame.

Website: http://www.slengpung.com/