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Teletext

44 bytes added, 17:18, 24 February 2018
[[Category:Network]]
Teletext offers one-directional data transmission, broadcast via television signalin the unused lines at the top of the image.
Commonly it is found in analogue television signals and contains data for text and crude graphics. Digital televisions have text services which use a different method (almost HTML based).
Teletext is also "Mode 7" on the BBC Micro.
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