The first communications satellite,called Telstar was launched from Cape Canaveral on 10 July 1962. This marked the star of rapid transmission of TV signals over wide area. What we take for granted today---satellite television, cellular telephones,wireless and high-speed Internet Connections, and so forth----were part of science fiction only 40 years ago. Teenager today are the first real citizens of the digital world.Unlike there parents, they have grown up in the world in which electronic delivery of information and entertainment is natural and more accepted than convertional forms like the newspaper, tape, or film