<
pibb...@gmail.com> wrote:
> At TNMOC at Bletchley Park I saw something that called it's self a
> "Colour Viewdata" in an ITT2020 case. I did want to see inside but
> the whole thing was screwed down and from the back it didn't look
> like it ever had Apple family parts inside.
> (I think it was used for teletext or Prestel in the UK)
Prestel was a service provided in the UK for some years, and was a
similar information system to Minitel in France. It used the same
character set as the Teletext pages that were transmitted over analogue
TV in the UK. Prestel died many years ago, but Teletext survived until
last year, when the UK went digital for all its TV services.
However you did not need a special computer to access Prestel, as my own
commercial program Data Highway that was sold by PACE in Europe, was
able to access it in full colour using a //e or //c. On a basic II+, you
only got a B&W display, and to get the display in colour, you needed a
special Teletext card that PACE sold in the UK.
I think that special Viewdata version of the ITT2020, was probably what
I remember seeing in estate agants (realtors) to access custom pages on
Prestel. It would have been an ITT2020 inside, and would have run custom
software.
Cheers - Ewen