On Jul 16, 23:54, Rob Lion wrote:
> I recently acquired a MountainGate RDR storage system
> controller cards (I think, they are entirely unlabeled) -- the most
> prominent/relevant chips are 2x Western Digital WD33C93 and a TI
TMS320C25.
The WD33C93 is a SCSI controller, and the TMS320 family are DSPs (often
used as fast RISC processors). More than that, I don't know, I'm afraid.
--
Pete Peter Turnbull
Network Manager
University of York
Got video ram from a list member today, 44256-80's, and I now have 1mb video
on the builtin S3 card for my Dell 4066/XE server. If anyone has more on
it's way I can still use it as I have another Dell machine that also
upgrades the same way.
ok...i need to know if anyone has any twinaxial cable m/m and m/f about 6 feet long (the kind that would connect a monitor to an IBM Sys 36)
also i was curious if anyone had an EGA monitor or a VM-1 monitor
if anyone is willing to sell me any of these then please email me personally to let me know
thanks
Robert Cobbins
Greetings:
I would very much appreciate the help of a U.K. resident in
calculating postage to ship an approx. fifteen pound box of
manuals (and floppies) from England to the U.S. We need to
do this without mortgaging the farm, so a slow boat across
the pond is preferred. The originating location is:
Tushingham
Cheshire
SY13 4QR
and the destination is Duluth, MN, USA.
Please reply to <msg(a)cybertheque.org>
All help is _VERY_ much appreciated.
Michael Grigoni
Cybertheque Museum
> >By putting up some sort of target which does provide the light-pen
> >with a light signal. The target is designed in such a way that you
> >cannot move the pen without hitting some part of it, and the software
> >sees a light-pen hit and *re-centers* the target on that point,
> >effectively moving it to where the pen is now pointing.
>
> I think the technical term for that is a "cursor". :-)
There was an article in an early issue of Byte that described
how to build a lightpen and rudimentary code to drive it. I
believe it was for the Processor technology VDM-1 (and so you
could do it with a SOL too).
The full-matrix block cursor was just one of many characters
stored in the character generator chip. You'd have to calibrate
the pen interface so that only a cursor block would put out enough
light to trigger the interface to have a hit available. So you'd
write out a row of cursors, starting at the top row, looking for
a signal from the pen. Once you find the row, you'd repeat the
sequence colmun-by-column until you again got a hit. Now you
know the X,Y coordinates of then pen, and you can do whatever
you want at that point. Select the object under the pen, repeat
the depositing of some character sequence, etc.
To draw with this particular display, of course, you'd have to
draw using some pre-defined screen character as the "nib". I
never got that far- I build the pen, still have it, and I put
quite a bit of effort into re-writing the code, all on paper..
then I moved out, forgot it, and the girlfriend threw my code
away. but I digress...
-dq
hmm you said, that you admin a network with NMS9100 in it.
I have the same computer at home but its missing his BIOS Disk. Do you
have still one of these or know where to get it?
thanx,
Marek Czernohous
--
marek(a)czernohous.de
>Ok, my mind is still blown. How does a light-pen drawing program work
>then? (Or is a light-pen drawing program not possible?)
By putting up some sort of target which does provide the light-pen
with a light signal. The target is designed in such a way that you
cannot move the pen without hitting some part of it, and the software
sees a light-pen hit and *re-centers* the target on that point,
effectively moving it to where the pen is now pointing.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
Since at least discussing Supercomputers is on-topic, I guess we can
proceed...
It's an interesting sales point, but as those who are even more in the know
than I have said, a large cluster of computers is *not* a supercomputer;
there are (see comp.sys.super for more details) classes of problem that
each lends itself to, and that the other does not. But of course, any computer
can be used to do what any other computer can do, so it may be a moot point.
-dq
I recently acquired a MountainGate RDR storage system of some kind. I don't
know much about it or how it would be used, but the price was right...
Anyway, I was wondering if anyone knew anything about this sytem.
What I have are 3 large rackmount cases, Units 0, 1, and 2, each with an ISA
backplane and 8x Quantum Grand Prix 4.3GB drives.
Unit 0 is the controller, with a 486 SBC, 420MB boot drive, parallel/CGA?
card, and 10baseT ethernet. It also has a pair of "Acces I/O Products" model
LT2-AT cards, with 100-pin connectors on the back panel. It then has 4x RAID
controller cards (I think, they are entirely unlabeled) -- the most
prominent/relevant chips are 2x Western Digital WD33C93 and a TI TMS320C25.
Finally, there is some sort of master controller card that sasys
MountainGate on it, with a DB-37 connector on the back panel. The 5
controller cards are connected with a 50 pin ribbon cable bus, and the 4
drive controllers have a pair of 10 pin ribbon cables bussing them together,
one of which goes to a pair of DB9s on the back panel.
Unit 1 and Unit 2 are similarly configured, but with only the 4 drive
controllers and the master controller, and 1 LT2-AT each.
I have tried to power the whole system up, but the only CGA screen I have is
really flaky, so I can tell that _something's_ going on on the screen, but I
can't read it. Hopefully I'll be able to track down an ISA VGA video card
soon; I had one but loaned it to a friend.
If anyone knows anything about this system, please let me know.
Thanks a lot,
Rob Lion
