Open figure viewer
The following paper is based on some research work carried out by the author while studying at the Centre for Information Science, City University, London in 1982. The original work concentrated on the Prestel system, but has for the purposes of the present paper been broadened out as far as possible to encompass videotex in general. A fairly extensive literature review has also been carried out to bring the coverage up to date.
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© MCB UP Limited
1985
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