Prestel / Viewdata (1979)
Prestel (abbrev. from press telephone), the brand name for the UK Post Office’s Viewdata technology, was an interactive videotex system developed during the late 1970s and commercially launched in 1979.
Terminal/demonstration at the National Museum of Science & Industry
An eerie ad for Prestel, which was a videotex service in the UK. A bit like interactive teletext via modem.

