29 Jan
2010
29 Jan
'10
1:34 p.m.
On 29/01/2010 20:50, Tony Duell wrote:
I'm not sure. The Beeb was 1982 or so.
1981. The 6809 came out a little before that; I'd guess 1979-80 because
although it's listed in a couple of 1980 data books I have, the specs
are incomplete. Acorn's 6809 board came out in late 1980, so the 6809
MPU can't be any later than that.
When the Beeb was designed, Acorn had a lot of expertise with the 6502,
and since they hadn't much time, I suspect the 6502 was an easier and
more obvious choice. Probably cheaper, too, at that time.
--
Pete Peter Turnbull
Network Manager
University of York