The "push" system technology was released to the public through commercial software PointCast, in 1996, followed by others like Marimba and the recent Netcaster and Webcaster. The term "pointcasting" was given this name because it is a news transmission point to point, from the generator to the receptor, inversely to "broadcasting" technology that is the emission of standart programs from one point to several ones, like in the case of common newspapers, radio and TV.
The system is constituted, on the subscriber side, by a specialized browser that uses the same basic TCP/IP communication protocol used in Internet, and that receives multimedia material from a specialized transmissor agency (server). Each program offers several information multimedia channels, among them news, entertainment, sports, health and business channels. The program user sets up the channels of his interest and receives the information update according to his choice, with periodic updates. Channels can be made of