A two-way interactive system for delivering computer-generated data into the home through a television set.
Found on http://www2.plymouth.ac.uk/distancelearning/course/glossary.doc
System in which information (text and simple pictures) is displayed on a television (video) screen. There are two basic systems, known as teletext and viewdata. In the teletext system, information is broadcast with the ordinary television signals, whereas in the viewdata system, information is relayed to the screen from a central data bank via the ...Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0006297.html
videotext A video communications system which is a communications service linked to an adapted television receiver, or video display terminal, by telephone or cable television lines to allow access to pages of information. Systems can be one-way, allowing only for the display of selected information, or on-line or interactive, allowing for two-way ...Found on http://www.wordinfo.info/words/index/info/view_unit/2298/11
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