Teletext
Videos
Teletext, or broadcast teletext, is a standard for displaying text and rudimentary graphics on suitably equipped television sets. Teletext sends data in the broadcast signal, hidden in the invisible v
Teletext launch in Amsterdam, 1980
NRK digital teletext
Antiope à Moscou Portail Tourisme
Videotex
Videos
Videotex was one of the earliest implementations of an end-user information system. From the late 1970s to early 2010s, it was used to deliver information to a user in computer-like format, typically
Videotex example screen showing its graphics capabilities, 1978. As in teletext, predefined, fixed-width graphics characters in multiple colors could be used to create an image.
Minitel was perhaps the most successful videotex service worldwide, using this terminal, c. 1982.
Loewe Multicom E, a late 1980s videotex terminal
TRS-80 Videotex terminal