[BBC-Micro] Risc PC (Was 'Minitel in France')
rick at rs432.net
Mon Jul 25 00:47:52 BST 2011
On 24/07/2011 20:18, Mike Pepper wrote:
> All the direct driven hardware broke from Windows 2000 onwards.
Well, to be fair, it was idiotic of Win95 to allow hardware to be
hijacked by user programs. Hell, my PtrIIC (IIC via printer port) DLL
works by directly bashing the parallel port addresses. [*] Thankfully
there was a tweak (giveio) that allowed it to keep working under XP. ;-)
> had gone; leaving, in one case, a £50,000 colorimeter, with the only other
> option of buying a new software suite at a price of around half the cost of
> a new machine).
Given it's some specialist kit, why could it not remain on the hardware
that worked? Was the upgrade an upgrade for the sake of upgrading? One
of the (old!) machines at work is an automated crate (I swear it is
steam powered). It is running Windows for Workgroups on an underpowered
486 board with custom ISA modules plugged in. Nobody plans to update it,
because *it* *works*.
> slow response problems with the mainframe, and it turned out that the
> original software was running on a emulation of the orginal hardware and OS,
> because no-one wanted to risk the debugging that would come with
> re-compiling the COBOL for the newer 'frame.
You know, I'd have thought writing and debugging an emulator would have
been a bigger challenge!
> I got it done, and seriously upset the mainframe supplier,
face += egg;
> (and that would have stacked 2 emulators, as I recall!)..
Fires up RedSquirrel.
Fires up 65Host.
Hmmm, not as bad as I thought. ;-)
> a lot of companies used the 'spare' 8 bits to store things in,
Come, now Acorn wouldn't do anything silly like that!
<looks at FileCore SWIs>
> or hardware makers that don't stick to the rules.
I've already mentioned (here?) my Compaq that wouldn't allow a PCI video
capture card to stream to a NAS via a PCI ethernet card, as I could have
one or the other generating interrupts, but *not* *both*.
> SATA 2 was supposed to be transparently backward compatable with SATA 1.
Why pick on SATA? We can go right back to the early IDE drives and how
the Master/Slave concept nearly fell apart as some drives point-blank
refused to talk to some other drives, and how some didn't want to be
slaves off anything...
> Sometimes the gutsy thing to do would have been to scrap the old standard,
Heh, if this was implemented, we might look to a future with something
nicer than x86 tech. However I can't see Microsoft dropping a big money
maker. I don't think they are interested in Win8 on ARM to look to
defect, I think they realise they need a viable presence on ARM these days.
Rick Murray, eeePC901 & ADSL WiFI'd into it, all ETLAs!
BBC B: DNFS, 2 x 5.25" floppies, EPROM prog, Acorn TTX
E01S FileStore, A3000/A5000/RiscPC/various PCs/blahblah...
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