Abstract
Videotex is a name used internationally to represent a class of home and business information services which disseminate information or provide for transactional services from public information suppliers. The system makes use of the home television set as an essential still-picture display medium where the consumer may select what is displayed. An eletronic module can be added to the television set to allow it to assemble and display an image consisting of characters and pictorial drawings. The information to be displayed is typically received either from a data connection over a telephone line or from encoded data in the unused scan lines of an over-the-air television or cable television signal.
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