Bildschirmtext

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Bildschirmtext

Bildschirmtext on-screen logo
Developer	Systems Designers Ltd, Deutsche Bundespost
Type	Videotex
Launch date	1983; 41 years ago (1983)
Discontinued	2001; 23 years ago (2001)
Platform(s)	CEPT1 profile
Status	Discontinued

Bildschirmtext (German "screen text", abbrev. Btx or BTX) was an online videotex system launched in West Germany in 1983 by the Deutsche Bundespost, the (West) German postal service.^[1]

Btx originally required special hardware (it was based on GEC 4000 series computers) which had to be bought or rented from the British General Post Office. The data was transmitted through the telephone network using V.23 modems and the content was displayed on a television set.