julesrichardsonuk at yahoo.co.uk
Mon Nov 27 15:53:21 CST 2006
Tony Duell wrote:
>> On 27/11/06 20:01, "Tony Duell" <ard at p850ug1.demon.co.uk> wrote:
> 3 CPUs is a bit of an overstatement. There is a Z80 in there for user
> programs. And a 6809 for I/O (!), the former with 64K RAM, the latter
> with 8K IIRC. The last 'CPU' is an NEC 7220 graphics chip with 96K video
> RAM. 3 bitplanes, there's no text mode IIRC.
Out of interest, were there many manufacturers who sold a system with three
different CPUs as standard? There were a few around with two, I know...
(Torch came close, I suppose, but as they didn't make the BBC side of their
systems themselves I'm not sure that they count!)
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