15 Mar
2007
15 Mar
'07
4:49 p.m.
On 15/03/2007 09:34, Rob wrote:
It was, of course, the same display (and attribute code) spec as the UK
Teletext system. Many Prestel terminals used the teletext chipset, the
application bnok for the later Philips teletext chips gives a viewdata
terminal as an example application (Alas suitable code for the
microcontroller is not in said book).
Older terminals used the SAA50x0 series of ICs, of course. There was a
chip called a LUCY (I forget what it stood for), SAA5070, which was the
digital bit of the Prestel modem, a cassette interface, etc. Don't ask ne
where to get one now.
-tony
One class of terminal that seems to have
disappeared completely from
history is the viewdata terminal.
Yup. I needed one to access home banking a decade ago, and it wasn't
easy to find one, other than on a BBC Micro or an Archimedes.