viewdata

/ˈvjuːˌdeɪtə/
noun
  1. An old system that displayed text and simple graphics on a television screen using telephone lines, popular in the 1970s and 1980s.
    • My grandparents used viewdata to check train timetables before the internet existed.
    • The museum had an exhibit showing how viewdata worked in the 1980s.
    • Viewdata allowed users to access news and weather information from their home televisions.
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