Electrohome Telidon terminal, typical of the ones used as part of the TABS system. This rare example is found at the Personal Computer Museum in Brantford, Ontario.
Developer
Communications Research Centre (CRC), Herb Bown
Type
Videotex
Launch date
1978; 46 years ago (1978)
Discontinued
31 March 1985; 39 years ago (31 March 1985)
Platform(s)
NAPLPS
Status
Discontinued
Telidon (from the Greek words τῆλε, tele "at a distance" and ἰδών, idon "seeing") was a videotex/teletext service developed by the Canadian Communications Research Centre (CRC) during the late 1970s and supported by commercial enterprises led by Infomart in the early 1980s. Most work on the system ended after 1985, having failed to build critical mass.
The CRC referred to Telidon as a "second generation" videotex system, offering improved performance, 2D colour graphics, multilingual support and a number of different interactivity options supported on various hardware. With additional features added by AT&T Corporation, and 16 other contributors in North America and supported by the Federal Government, Telidon was redefined as a protocol and became the NAPLPS standard.[1]
A number of Telidon systems were rolled out, including GRASSROOTS for the Province of Manitoba, SOI for Venezuela, Compuserve, LA Times in California, EPIC for General Motors, NOVATEX for Teleglobe Canada and the Swiss PTT nationwide application.[2] These failed to demonstrate compelling functionality, and the auxiliary equipment costs remained high. Eventually, on 31 March 1985, the Canadian government support for the project ended and the various commercial services based on it closed shortly thereafter.
Telidon saw limited use after that, in niches like informational displays in airports and similar environments. NAPLPS did appear in several other products, notably the Prodigy online service and some bulletin boards. Telidon had a lasting legacy on the hardware side; its NABTS communications system found re-use years later in WebTV for Windows.
Telidon (from the Greek words τῆλε, tele "at a distance" and ἰδών, idon "seeing") was a videotex/teletext service developed by the Canadian Communications...
originally with videotex and teletext services. NAPLPS was developed from the Telidon system developed in Canada, with a small number of additions from AT&T...
social and political meaning of computer technology, and he wrote The Telidon Book with Ernest Chang, about electronic publishing and video text, and...
Department of Communications, with their industry partner Norpak, for the Telidon system. Similar systems had been developed by the BBC in Europe for their...
1978 the Canadian Department of Communications publicly launched it as Telidon, a "second generation" videotex/teletext service, and committed to a four-year...
friendsofcrc.ca/Projects/Hermes/hermes.html Telidon http://www.friendsofcrc.ca/Projects/Telidon/Telidon.html Software Defined Radio "Communications Research...
A rare example of Electrohome's Telidon terminal on display. Telidon was an early alphageometric videotex system promoted by the Canadian government but...
telephone jacks. In July 1979, MTS announced that it would be a pioneer in Telidon-based two-way electronic information services. The trial was called "Project...
now called cloud computing[citation needed], and his work on Canada's Telidon videotex project. He started working at the Canadian ministry of Communications...
developments in microelectronic information processing, focusing on the Telidon system, a Canadian invention offering two-way interactive television. Diving...
The service closed down shortly after exiting the experimental stage. Telidon was an earlier Canadian text and graphics service using the same technological...
about 1986, and used the Canadian-developed Telidon system, which was developed in 1980. Like Antiope, Telidon allowed significantly higher graphic resolution...
Retrieved August 29, 2017. Erola, Judy; Fox, Francis (1984). From Gutenberg to Telidon: A White Paper on Copyright. Ottawa: Consumer and Corporate Affairs Canada...
content was notable for using Telidon - a Canadian pre-internet videotex/teletext service integrated into the show by Telidon/videotex artist Bill Perry...
the University of Waterloo participated in Telidon experiments during the late 70s and early 80s. Telidon, an alphageometric videotex information system...
NAPLPS-based Telidon videotex system installed at the headend, with the graphical data for the stories to be displayed being fed to the Telidon decoders via...
In August 1981, Bill Perry and Ric Amis started Telidon at Trinity Square Video, with a Norpak Telidon Information Provider System given to Perry by Bell...
into the Canadian videotex system which the Canadians referred to as "Telidon". Having developed Prestel as a way of maximising usage of existing telephone...
Donald (1989). Technological Determinism In Canadian Telecommunications: Telidon Technology, Industry and Government. Ryerson Polytechnical Institute. p...
Donald (1989). Technological Determinism In Canadian Telecommunications: Telidon Technology, Industry and Government. Ryerson Polytechnical Institute. p...
Government announces a three-year CBC trial of Canadian teletext system (Telidon). 1982 The Report of the Applebaum-Hébert Committee is released. Opening...
John Matos/Crash to experiment on the early interactive teletext system Telidon at NYU's Alternate Media Center, the predecessor of its Interactive Telecommunications...
permission from Canadian Department of Communications (DOC) to take part in the Telidon Vista field trials supported by Bell, in Toronto and Montreal. Artists...
developed the word processor. The federal government became involved with its Telidon video text service based on the (North American Presentation Level Protocol...
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