20 Jun
2006
20 Jun
'06
5:48 a.m.
hi Dan
It has two DB9 connectors.
regards
Henry
---- On Mon, 19 Jun 2006, Dan Williams (williams.dan at gmail.com)
wrote:
connects to
On 19/06/06, Henry Ji <ying6926 at ureach.com>
wrote:
> I have a
> DEC microvax 1000 with
>
> Matrox QG-640 card (1985). Does anyone know what matching
monitor it would
work with? I tried
Matrox but no luck. VGA came out around 1987. Could
this be a
EGA card? Does G-640 means monochrom
640 resolution? I googled internet and I see QRGB
card. Analog
VGA graphics card?
thanks
Henry
Is it the one with just a phono socket. I think this just a video monitor. Should work if you plug in to your
tv. If
it's the
one I'm thinking of it is monochrome.
Dan
20 Jun
20 Jun
1:25 p.m.
Henry Ji <ying6926 at ureach.com> said:
From what I can gleen from the two or three places
it's mentioned (abstracts
from technical articles) it supports dual monitors at relatively high
resolution
(for the time.) No idea if it's monocrome or color... but sounds
like you should be able to use it if you can get a couple of true Multisync
monitors.
"Matrox QG-640 video display board installed in the LSI-11/73 computer. Both
high. resolution 512x512 pixel projection images ..."
"QG-640 dual-channel video graphics board interfaced. to two NEC Multisync
monitors. The QG-640 is. capable of displaying two 640- x 480-pixel images
in "
hi Dan
It has two DB9 connectors.
regards
Henry
---- On Mon, 19 Jun 2006, Dan Williams (williams.dan at gmail.com)
wrote:
connects to
--
On 19/06/06, Henry Ji <ying6926 at
ureach.com> wrote:
> I have a
> DEC microvax 1000 with
>
> Matrox QG-640 card (1985). Does anyone know what matching
monitor it would
work with? I tried
Matrox but no luck. VGA came out around 1987.
Could this be a
EGA card? Does G-640 means monochrom
640 resolution? I googled internet and I see QRGB
card. Analog
VGA graphics card?
thanks
Henry
Is it the one with just a phono socket. I think this just a video monitor. Should work if you plug in to
your tv. If
it's the
one I'm thinking of it is monochrome.
Dan
21 Jun
21 Jun
2:06 a.m.
On 6/21/06, imind at ptd.net <imind at ptd.net> wrote:
Henry Ji <ying6926 at ureach.com> said:
Hmm... reminds me of a board I have for the PDP-11 (but with one
channel)... it was never directly supported by any PDP-11 OS I know of
(i.e. - no graphical login), but it was easy to talk to from an RT-11
program and scribble pretty pictures on. We used to use only the
green channel and display 512x512 mono images on it.
If your QG-640 doesn't have any sort of keyboard/mouse attachment, I'd
think that it was meant as a display-only device, not a DECwindows
console.
-ethan
From what I can gleen from the two or three places
it's mentioned (abstracts
from technical articles) it supports dual monitors at
relatively high
resolution (for the time.) No idea if it's monocrome or color... but sounds
like you should be able to use it if you can get a couple of true Multisync
monitors.
"Matrox QG-640 video display board installed in the LSI-11/73 computer. Both
high. resolution 512x512 pixel projection images ..."
"QG-640 dual-channel video graphics board interfaced. to two NEC Multisync
monitors. The QG-640 is. capable of displaying two 640- x 480-pixel images
in " 
11:26 p.m.
Hmm... reminds me of a board I have for the PDP-11
(but with one
channel)... it was never directly supported by any PDP-11 OS I know of
(i.e. - no graphical login), but it was easy to talk to from an RT-11
program and scribble pretty pictures on. We used to use only the
green channel and display 512x512 mono images on it.
There were some quite interesting graphics display systems for the
PDP11/VAX. Even though I don't have a graphical display on this PC, I
have collected a number of display systems for the PDP11, including :
DEC VT11 / GT40 (Vector display that DMA's data from main memory via the
Unibus)
Ramtek 9460. Alas mine is incomplete (just the cardcage and boards), but
it seems to be a 68000-based unit
Grinnel framestore. This seems to be a digitiser as well (there's what
looks like an ADC on one of the boards), and is mostly hand-wired, not
PCB. The Unibus interface is a DR11-B. I know noting about this unit
PPL video disk. This uses a head-per-track hard disk to record the video
(it rotates at the frame rate, the analoge video signals are FM modulated
and recorded on the disk).
I2S Model 70 and Model 75 Image processor/display systems. I think I've
described these before. They yse semiconductor RAM (the earliest ones I
haev contains over 3000 4K bit DEAM chips...), organised as byteplanes
(512*512*8 bits IIRC). The byteplanes feed programmable lookup tables,
then outputs of those are added, go to more lookup tables, then to the
DACs. Oh yes, there's also the feedback ALU (planes 0 and 1 are taken as
a 16 bit accumulator plane, you can combine that with any other plane and
write the result back to the accumulator), a histogram board, cursor,
text overlay, etc Fortunately I have the manuals....
-tony
22 Jun
22 Jun
1:50 p.m.
Tony Duell wrote:
Wasn't there also a UNIBUS-attached framebuffer box made by Evans and
Sutherland?
Peace... Sridhar
Hmm... reminds
me of a board I have for the PDP-11 (but with one
channel)... it was never directly supported by any PDP-11 OS I know of
(i.e. - no graphical login), but it was easy to talk to from an RT-11
program and scribble pretty pictures on. We used to use only the
green channel and display 512x512 mono images on it.
There were some quite interesting graphics display systems for the
PDP11/VAX. Even though I don't have a graphical display on this PC, I
have collected a number of display systems for the PDP11, including :
<SNIP> 
3:06 p.m.
Tony Duell wrote:
Wasn't there also a UNIBUS-attached framebuffer box made by Evans
and Sutherland?
Don't know about E&S framebuffers but certainly the E&S PS2
(PictureSystem 2), and later models, were vector graphics devices
with a variety of additional control peripherals (knobs, switches,
light pen, etc.). We used one on both an 11/55 and a VAX-11/780.
Used something like a DR11-W interface.
John
Hmm...
reminds me of a board I have for the PDP-11 (but with one
channel)... it was never directly supported by any PDP-11 OS I know of
(i.e. - no graphical login), but it was easy to talk to from an RT-11
program and scribble pretty pictures on. We used to use only the
green channel and display 512x512 mono images on it.
There were some quite interesting graphics display systems for the
PDP11/VAX. Even though I don't have a graphical display on this PC,
I have collected a number of display systems for the PDP11,
including :
<SNIP> 
24 Jun
24 Jun
5:20 a.m.
Grinnel framestore. This seems to be a digitiser as
well (there's
what looks like an ADC on one of the boards), and is mostly
hand-wired, not PCB. The Unibus interface is a DR11-B. I know noting
about this unit
Oh, that takes me back.
Back in the '80s, the lab I worked at had a Grinnell display (I'm
pretty sure that's how it was spelled). I don't recall the hardware of
its interface, despite having written a BSD driver for it. It was
connected to a VAX-11/780 (and I think later to a 750).
Ours didn't have a digitizer, as far as I can recall. It was 256x256
(framebuffer memory) or 256x240 (displayed), with a joystick-and-button
input interface (which might be what your ADCish stuff is all about).
It had capabilities I've yet to see anywhere else. The closest X term
for its display capabilities is DirectColor, but it could do things X
has no way to describe. In particular, if you describe the three major
pieces as three (6-bit-deep) memory planes, three (6 bits in and I
think 8 bits out) lookup tables, and three DACs to drive the three
primaries on the monitor, there was a way to control which memory plane
fed each lookup table and which lookup table fed each DAC, and for each
switching layer, each switch was independent of the others, meaning
that all 27 setting combinations were achievable.
I don't remember any model numbers.
/~\ The ASCII der Mouse
\ / Ribbon Campaign
X Against HTML mouse at rodents.montreal.qc.ca
/ \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
8:56 p.m.
Grinnel framestore. This seems to be a digitiser
as well (there's
what looks like an ADC on one of the boards), and is mostly
hand-wired, not PCB. The Unibus interface is a DR11-B. I know noting
about this unit
Oh, that takes me back.
Back in the '80s, the lab I worked at had a Grinnell display (I'm
pretty sure that's how it was spelled). I don't recall the hardware of its interface, despite having written a BSD driver for
it. It was
connected to a VAX-11/780 (and I think later to a 750).
Mine came off an 11/34 machine. When I got it, there were 2 cables with
it, with a round 'milspec' connectors on one end that fit connectors on
the back of the framewstore, and DEC card-edge paddleboard things on the
other end. Also with it was a DR11-B. On the grounds those paddleboards
would fit the user device connectors on the DR11-B, I've assumed that's
how it was connected.
Ours didn't have a digitizer, as far as I can recall. It was 256x256
I'm nor _sure_ mine does. It's just that one of the boards seems to have
a lot of fast (for the time) analogue comparators on it, which look like
a semi-flash ADC. I don't have schematics, and haven't had the time to
trace them out yet!
(framebuffer memory) or 256x240 (displayed), with a
joystick-and-button
input interface (which might be what your ADCish stuff is all about).
It had capabilities I've yet to see anywhere else. The closest X term
for its display capabilities is DirectColor, but it could do things X
has no way to describe. In particular, if you describe the three major
pieces as three (6-bit-deep) memory planes, three (6 bits in and I
think 8 bits out) lookup tables, and three DACs to drive the three
primaries on the monitor, there was a way to control which memory plane
fed each lookup table and which lookup table fed each DAC, and for each
switching layer, each switch was independent of the others, meaning
that all 27 setting combinations were achievable.
Interesting...
I will have to dig out the docs on my I2S image processor/display
systems. Those machines are stuffed with programmable look-up tables.
From what I remember, the outputs of each byteplane
feed lookup tables,
the outputs of those are added (full adder), the output of the
full adder
feeds more lookup tables, etc. The manual suggests programming 2's
complement tables to do subtraction, log/antilog tables to do
multiplication, and so on.
-tony
6766
days inactive
6770
days old
7 comments
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participants (7)
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ard＠p850ug1.demon.co.uk -
dundas＠caltech.edu -
ethan.dicks＠gmail.com -
imind＠ptd.net -
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ying6926＠ureach.com