[[Teletext]] offers one-directional data transmission, broadcast via an television signal (it is a ViewData like system). (Generally it is transmitted in an analogue television signal. Digital television uses a different system).More commonly it contains pages of text (including news) and crude graphics.
== Required UHF/VHF Decoder (Tuner) ==
* From the '''Microtext's Tuner''' (which was sold separately, for users who don't own VCRs)
** The Microtext Tuner was intended to supply a Composite signal for Teletext adaptor.
** IeI.e. unlike other [[CPC]] Tuners (like the [[MP-3]]) which were intended to supply a an RGB signal to the [[CTM640/CTM644|CTM644]] monitor.
== Telesoftware ==