Technology Assessment of Videotex and Teletex / Phase 1 Report: Bcakground Information and Findings on Teletex and Videotex AuthorJohn Tydeman,Lawrence Zwimpfer,Hubert Lipinski,Michael J. Nyhan,Robert Plummer, Richard Adler Publication DateMay 1981 Report NumberWP-33 Topic Category Emerging Media Keywords teletext and videotex videotex service captioning broadcasters
