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Editors introduction A lay guide to how it works
3 other sections not shown
alphanumeric keyboard autodialler AVIP Bildschirmtext Birmingham Post broadcast business information cable Captain CCITT Ceefax cent centre characters charge choice classified advertisements closed user groups colour commercial common carrier communications competition consumer cost database disc display editorial example facilities Fintel future graphics hardware Independent Broadcasting Authority information owner information service input interest involved keyboard keypad major manufacturers medium modem newspaper offered operation organizations Post Office Post Office Telecommunications potential Prestel service Prestel sets Prestel system private viewdata systems problems programs radio rental screen service supplier specialist standards structure task technical telecommunications telesoftware teletext television set Telidon terminals transmission TV industry TV set umbrella information provider update user segment user's videotex videotex service videotex systems viewdata service West Germany