21 Jul
2016
21 Jul
'16
2:26 p.m.
On 21/07/2016 15:12, Liam Proven wrote:
There's a thought. I'd be up for that, though it's not actually an
A5000 I meant; the A500 was the development system - looks rather like
an A310 but without the fancy front bezel, and painted blue/grey. There
were only a few made. They were used internally during development -
hence the podule to connect it to a Beeb, which provided the I/O early
on - and in the later stages before the Archimedes launch in 1987,
several were loaned to software developers.
--
Pete
On 21 July 2016 at 15:24, Pete Turnbull <pete at
dunnington.plus.com> wrote:
>
>But a StrongARM [ ... ] initially ran 3 times as
> fast [ ... ] and eventually SA-110 ran to over 200MHz) yet
> uses less power.
OK. I think the first announced StrongARM, the SA110,
was announced as
running at 100, 133 and 200, mind you.
Um, isn't that pretty much what I wrote? I'm pretty sure the first
batch(es) weren't rated for the full 200.
But the point about transistor count is well made. For
the casual, it
was displayed by the packaging. The SA110 came in a plastic QFP, and
it came from the same company and around the same time as the Alpha,
with threaded shanks on the packaging for screwing a heatsink into
place. Spoke volumes. :-)
Hmm. Never seen one like that. None of the ones I've seen in real life
are PQFPs, and none have a heatsink. They're all plastic pin grid array
packages. No heatsink at all. Nor does the datasheet for the PQFP show
anything related to a heatsink. It also shows a PLCC version; no
heatsink there either, and again I've never seen one. Maybe that's just
because I normally only saw them in Acorn machines, of course.
I wish I'd
kept an A500, though. All I have now is the
podule to connect it to a Beeb. Anybody got the machine to put it in?
I have an A5000, near-new in box. But it's not been removed for about
15y and I've no idea what working condition it's in. I could post it
to you when I'm next in the UK -- probably early next month. If you're
interested, make drop me a line off-list. It's in my storage unit in
South Wimbledon, where I have no power or anything, so I can't
plausibly get it out and test it.
I am planning to move the rest of my stuff here to Czechia next month,
mainly for cost reasons due to the falling GBP. If you wished you
could come and meet me and inspect it in person?