On Jul 24, 23:03, Jules Richardson wrote:
> Details on the A310 cards would be nice - specs of the video
digitiser,
Can't remember the specs offhand. IIRC it's possible to get colour out
of it (all the early Acorn demos were made with one) but I think the
native mode of operation is monochrome. I have one, and I have the
software on an 800K ADFS E disk, though I haven't used it in at least a
decade. I also have some of the colour demos done with it. The only
thing I don't have, and which I'd dearly like to find, is the spoof of
the BBC rotating globe that was done using images from the digitiser --
Aunty complained and all the copies I had access to got withdrawn. It
uses SWIs contained in the EPROM on the card to drive the hardware; the
version I have is 2.51, which I remember getting from Mike Harrison
(who designed it) specially -- it's not the normal release version.
> what
> scanner plugs into the scanner card (it has an 8 pin min-DIN, a 20
pin
> connector, and what appears to be power output),
Sounds like the Beebug scanner, or possibly the Computer Concepts one
(which may have used the same scanner head). Mine used a Mitsubishi
scan head which was the width of A4 and rolled over a flat sheet, but
there was also a sheet feeder available which used the 8-pin miniDIN.
The 20-way subminiature D-connector is the connection to the scan
head. It could also be used with those little scanner hand units (the
ones that look like a fat barcode scanner). IIRC, the power jack is an
input, for scanners that take more power than the backplane is supposed
to provide.
> and what the hell a Nexus card
> is / does...
If it's what I think it is, it was something that either SJ Research or
Lingenuity built to hook a few Archimedes machines onto a SCSI bus to
share a hard drive. I could be thinking of something else, though.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Thu Jul 24 2003 - 19:38:00 BST