Re: Sun E10000 Historical Enquiry

2017-02-23 Thread Pontus Pihlgren
On Wed, Feb 22, 2017 at 08:05:04PM -0700, Robert Ollerton wrote:
> Celerity Computing 6000  (multi processor scalar and vector;; San Diego, CA.
> bought out by Floating Point Systems.
> then bought out by Cray

then SGI bought Cray whic sold the "Superserver" part to SUN. SGI put 
their money into the Origin2k and didn't see the need/potential in 
Starfire which became the E10k

The rest of Cray became "Cray Research" which was sold to Tera Computer 
Company which was renamed Cray Inc.

(SGI was later bought by Rackable which was renamed to SGI)

/P


Re: Sun E10000 Historical Enquiry

2017-02-23 Thread Jerry Kemp

then HP purchases SGI

Reference:



Jerry


On 02/23/17 02:19 AM, Pontus Pihlgren wrote:

On Wed, Feb 22, 2017 at 08:05:04PM -0700, Robert Ollerton wrote:

Celerity Computing 6000  (multi processor scalar and vector;; San Diego, CA.
bought out by Floating Point Systems.
then bought out by Cray


then SGI bought Cray whic sold the "Superserver" part to SUN. SGI put
their money into the Origin2k and didn't see the need/potential in
Starfire which became the E10k

The rest of Cray became "Cray Research" which was sold to Tera Computer
Company which was renamed Cray Inc.

(SGI was later bought by Rackable which was renamed to SGI)

/P



Re: Q Bus Music Board

2017-02-23 Thread Pontus Pihlgren
On Wed, Feb 22, 2017 at 01:49:10PM -0500, Noel Chiappa wrote:
> 
> Sounds like it might be a standard analog output board, for lab settings.
> I'll bet the music thing is some marketing ploy, like the card game in 'The
> Story of Mel'. (What, you haven't read 'The Story of Mel'?!? :-)
> 

But of course I have :)


Re: story of Mel

2017-02-23 Thread Pontus Pihlgren
On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:
> 
> The sound (not music) card was actually a internally built and not sold
> (that I know of).

There must have been a few though, since several claim to have one and 
it even showed up on ebay.

(I'm just hoping I'l get lucky and find one.. I have an 11/73 with 
graphics, it would be nice to add sound to it)

/P


Re: Q Bus Music Board

2017-02-23 Thread Tony Duell
On Thu, Feb 23, 2017 at 8:22 AM, Pontus Pihlgren  wrote:
> On Wed, Feb 22, 2017 at 01:49:10PM -0500, Noel Chiappa wrote:
>>
>> Sounds like it might be a standard analog output board, for lab settings.
>> I'll bet the music thing is some marketing ploy, like the card game in 'The
>> Story of Mel'. (What, you haven't read 'The Story of Mel'?!? :-)
>>
>
> But of course I have :)

As have I. In fact I am pretty sure I referenced it in my Ph.D. thesis...

-tony


Re: after a long search, I found the Dr. Dobbs bound volumes

2017-02-23 Thread Evan Koblentz

http://6502.org/documents/publications/dr_dobbs_journal/

Apologies to the list if this is common knowledge.


We have the physical ones in the VCFed museum.


Re: How to refurbish plotter pens?

2017-02-23 Thread Randy Dawson
Suggestion: drop them in an ultrasonic cleaner with solvent...



From: cctech  on behalf of David Gesswein 

Sent: Saturday, January 28, 2017 10:34 AM
To: cct...@classiccmp.org
Subject: Re: How to refurbish plotter pens?

On Sat, Jan 28, 2017 at 03:51:49PM +0100, Mattis Lind wrote:
> I am about to get our IBM1627 (rebranded Calcomp 565) going but the pens in
> the case is quite dry. What is the best method to refurbish those? What is
> the best solvent to get the old ink out? What ink to refill with?
>
> https://drive.google.com/open?id=0B-rp4vyPPYu1ZjVRbnlyczV4czQ
>
That looks like the unpressurized ballpoint. I never tried to refill mine.
Another option is making replacements. I found current ballpoint
refills and cut them down. I used a dremmel with cutoff disk. Watch for
splatters. I then stuck something in to remove 1/4" or so of the ink from
the end. Otherwise it will come out in the pen holder and make a mess.
The problem now is almost all refills use a larger diameter tip. I had to
look around some before I found the proper size. I did grind one larger
diameter one down by chucking it in a drill and grinding with the dremel.



Re: story of Mel

2017-02-23 Thread allison
On 02/23/2017 03:23 AM, Pontus Pihlgren wrote:
> On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:
>> The sound (not music) card was actually a internally built and not sold
>> (that I know of).
> There must have been a few though, since several claim to have one and 
> it even showed up on ebay.
>
> (I'm just hoping I'l get lucky and find one.. I have an 11/73 with 
> graphics, it would be nice to add sound to it)
>
> /P
>
The sound card was a rare item and i'd guess there are very few ever
built and never sold.

Why not find the very much more common D to A card and drive that with
software
to make noise or music.  Or even a single bit output!

Allison


RE: Data General MTB Reference Sought

2017-02-23 Thread Stephen Merrony
Hi Bruce,

Thanks for that confirmation of my hazy memory!

What I can't seem to find is any reference as to how the tape drives interact 
with the DCH bus and the associated map slots.  I thought maybe a later guide 
might cover that?

Steve

-Original Message-
From: Bruce Ray [mailto:br...@wild-hare.com] 
Sent: 25 January 2017 18:23
To: General Discussion: On-Topic Posts 
Subject: Re: Data General MTB Reference Sought

G'day Steve -

AOS/VS OS tape drive base names are MTA, MTB, MTC, etc. and do not directly 
correspond to the assembler mnemonic name(s) - don't be confused by this 
difference.

The AOS/VS 'MTA'-type tape drive is described on page IV-5.  These correspond 
to the original DG model 4030/6020 units.

The AOS/VS 'MTB'-type tape drive is described on page IV-15. These correspond 
to the DG model 6026 units.

The AOS/VS 'MTC'-type tape drive is internally the same as the MTB except only 
a single unit is supported.  This was done to distinguish single-unit support 
for the popular DG model 6125 streamer.

The IV-15 mag tape programming model was consistent between the Nova/Eclipse/MV 
bus controllers and the Lbus controllers through emulation.  One size [almost] 
fit all.

What difference(s) are you seeing?


Bruce



On 1/25/2017 1:01 AM, Stephen Merrony wrote:
> Does anyone have (a scan of) a manual that covers programming the 
> MV-era MTB tape controller?
>
> I have a 1980 "Peripherals" manual (014-000632-01) from the 
> "Programmer's Reference Series" which covers the MTA type, but it 
> seems that the MTB behaves a bit differently and I am missing some 
> information for my current project.
>
> Thanks,
>
> Steve
>




RE: Q Bus Music Board

2017-02-23 Thread Bill Gunshannon


From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Noel Chiappa 
[j...@mercury.lcs.mit.edu]
Sent: Wednesday, February 22, 2017 1:49 PM
To: cctalk@classiccmp.org
Cc: j...@mercury.lcs.mit.edu
Subject: Re: Q Bus Music Board

> From: Jim Stephens

> That A6006 produces a hit in this document
> ...
> AAV11-C ANALOG OUTPUT BOARD
> ...
> 4 DACs, and a DC-DC converter.

Sounds like it might be a standard analog output board, for lab settings.
I'll bet the music thing is some marketing ploy, like the card game in 'The
Story of Mel'. (What, you haven't read 'The Story of Mel'?!? :-)

Noel



I think IO have a couple of them but I never heard them play music. :-)

bill


Re: after a long search, I found the Dr. Dobbs bound volumes

2017-02-23 Thread geneb

On Thu, 23 Feb 2017, Randy Dawson wrote:


Located here:


http://6502.org/documents/publications/dr_dobbs_journal/


Were there only 13 volumes produced?

g.

--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby.  Geeks collect hobbies.

ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://scarlet.deltasoft.com - Get it _today_!


Re: after a long search, I found the Dr. Dobbs bound volumes

2017-02-23 Thread william degnan
On Thu, Feb 23, 2017 at 9:37 AM, geneb  wrote:

> On Thu, 23 Feb 2017, Randy Dawson wrote:
>
> Located here:
>>
>>
>> http://6502.org/documents/publications/dr_dobbs_journal/
>>
>> Were there only 13 volumes produced?
>
> g.
>
>
>
I know 1989 copies are all marked volume 14.  I don't have any newer than
that.


Re: Q Bus Music Board

2017-02-23 Thread Pontus Pihlgren
On Thu, Feb 23, 2017 at 01:25:24PM +, Bill Gunshannon wrote:
> I think IO have a couple of them but I never heard them play music. :-)

A couple of A6006 or a couple of Q Bus Music Boards?

(I'm guessing A6006, I think that even I have D/A boards lying 
around)

/P


RE: Q Bus Music Board

2017-02-23 Thread Bill Gunshannon


From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Pontus Pihlgren 
[pon...@update.uu.se]
Sent: Thursday, February 23, 2017 11:26 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Q Bus Music Board

On Thu, Feb 23, 2017 at 01:25:24PM +, Bill Gunshannon wrote:
> I think IO have a couple of them but I never heard them play music. :-)

A couple of A6006 or a couple of Q Bus Music Boards?

(I'm guessing A6006, I think that even I have D/A boards lying
around)

__

Don't remember the numbers and they are packed away as I haven't done much
with my PDP's since moving 3 yearsago  but they are the A/D, D/A boards probably
from a MINC somewhere.  At the time I got them I was getting interested in
robotics, HVAC and home control and the PDP's seemed like reasonale candidates
as it's all for fun anyway.  Might be fun to make one talk Bluetooth and then 
use it
to control Lego MIndstorms and even my Roomba's.

bill


Re: Q Bus Music Board

2017-02-23 Thread ben

On 2/23/2017 4:36 AM, Tony Duell wrote:

On Thu, Feb 23, 2017 at 8:22 AM, Pontus Pihlgren  wrote:

On Wed, Feb 22, 2017 at 01:49:10PM -0500, Noel Chiappa wrote:


Sounds like it might be a standard analog output board, for lab settings.
I'll bet the music thing is some marketing ploy, like the card game in 'The
Story of Mel'. (What, you haven't read 'The Story of Mel'?!? :-)



But of course I have :)


As have I. In fact I am pretty sure I referenced it in my Ph.D. thesis...

-tony


PDP 8's sound is more fun ... Listen via radio. :)
Ben.





Re: story of Mel

2017-02-23 Thread Glen Slick
On Feb 23, 2017 12:23 AM, "Pontus Pihlgren"  wrote:


(I'm just hoping I'l get lucky and find one.. I have an 11/73 with
graphics, it would be nice to add sound to it)


What do you have for graphics? I have a DEC VSV11 board set and a Matrox
QC-640 board.


Re: story of Mel

2017-02-23 Thread Fred Cisin

I love the wisdom of Allison's remark, that
what some of us still see as "recent current events"
is "ancient history" for the youngsters.







Re: story of Mel

2017-02-23 Thread Ethan Dicks
On Thu, Feb 23, 2017 at 3:02 PM, Fred Cisin  wrote:
> I love the wisdom of Allison's remark, that
> what some of us still see as "recent current events"
> is "ancient history" for the youngsters.

Indeed.  That break-point is entirely relative to one's own age and
experiences... for me, "ancient history" is either pre-PET/Apple
II/TRS-80 stuff or perhaps just "8-bit home micros", depending on the
context.

-ethan


Re: story of Mel

2017-02-23 Thread Mike Stein

- Original Message - 
From: "Ethan Dicks" 
To: "General Discussion: On-Topic and Off-Topic Posts" 
Sent: Thursday, February 23, 2017 3:08 PM
Subject: Re: story of Mel


> On Thu, Feb 23, 2017 at 3:02 PM, Fred Cisin  wrote:
>> I love the wisdom of Allison's remark, that
>> what some of us still see as "recent current events"
>> is "ancient history" for the youngsters.
> 
> Indeed.  That break-point is entirely relative to one's own age and
> experiences... for me, "ancient history" is either pre-PET/Apple
> II/TRS-80 stuff or perhaps just "8-bit home micros", depending on the
> context.
> 
> -ethan
---

My "ancient history" is running a system consisting of an IBM 082, an 085, a 
604, a 402 and a 514, the original "sneakernet"; later, after promotion to run 
the statistics department, a relatively rare 101.

Even made the 402 multiply (albeit slowly) when "they" said it couldn't be 
done; many happy memories...

m


Re: story of Mel

2017-02-23 Thread william degnan
On Thu, Feb 23, 2017 at 3:31 PM, Mike Stein  wrote:

>
> - Original Message -
> From: "Ethan Dicks" 
> To: "General Discussion: On-Topic and Off-Topic Posts" <
> cctalk@classiccmp.org>
> Sent: Thursday, February 23, 2017 3:08 PM
> Subject: Re: story of Mel
>
>
> > On Thu, Feb 23, 2017 at 3:02 PM, Fred Cisin  wrote:
> >> I love the wisdom of Allison's remark, that
> >> what some of us still see as "recent current events"
> >> is "ancient history" for the youngsters.
> >
> > Indeed.  That break-point is entirely relative to one's own age and
> > experiences... for me, "ancient history" is either pre-PET/Apple
> > II/TRS-80 stuff or perhaps just "8-bit home micros", depending on the
> > context.
> >
> > -ethan
> ---
>
> My "ancient history" is running a system consisting of an IBM 082, an 085,
> a 604, a 402 and a 514, the original "sneakernet"; later, after promotion
> to run the statistics department, a relatively rare 101.
>
> Even made the 402 multiply (albeit slowly) when "they" said it couldn't be
> done; many happy memories...
>
> m
>

There are a few Easter eggs on my web site, one points to my biography.
Click on "1949" in the copyright statement at the bottom of my home page,
vintagecomputer.net

Bill


RE: story of Mel

2017-02-23 Thread Bill Gunshannon


From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Fred Cisin 
[ci...@xenosoft.com]
Sent: Thursday, February 23, 2017 3:02 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: story of Mel

I love the wisdom of Allison's remark, that
what some of us still see as "recent current events"
is "ancient history" for the youngsters.

___

I certainly hope people here don't think I'm a youngster since I just (re)joined
the list.  I started in computers with the 1401.  I didn't look at computer 
generated
music until I saw the talks at Usenix Nashville 1991.  Especialy the one done by
the guys from Bell Labs.  I always had an interest in music as well as computers
but didn't connect the two at first.  Now I am very interested in MIDI.  I am 
in the
process of converting an old Baldwin 46H Console to MIDI (as the electronics in 
it
were shot and beyond possibility of repair.)  Once I had my COCO 3's up again if
I coudn't figure it out myself I was going to ask about interfacing between my
Casio keyboard and my Orchestra-90.  It could prove rather interesting to use
a COCO as the sysnthesizer for the Console Organ once it is rewired. :-)

bill






Looking for a toggle switch

2017-02-23 Thread Charles Dickman
I need to replace the toggle switch on the M848 power fail and restart
board for a pdp8/e.

It is a singer controls corp T8001 as best I can read on it. A month
or so ago I search and found an exact replacement, but Google is now
failing me and I can't find it back.

Anybody know who bought Singers switch product line?


Re: story of Mel

2017-02-23 Thread Chris Elmquist
On February 23, 2017 2:02:50 PM CST, Fred Cisin  wrote:
>I love the wisdom of Allison's remark, that
>what some of us still see as "recent current events"
>is "ancient history" for the youngsters.

and the youngsters insist on reinventing dirt.

-- 
Chris Elmquist


Re: Q Bus Music Board

2017-02-23 Thread allison

On 2/23/17 8:25 AM, Bill Gunshannon wrote:


From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Noel Chiappa 
[j...@mercury.lcs.mit.edu]
Sent: Wednesday, February 22, 2017 1:49 PM
To: cctalk@classiccmp.org
Cc: j...@mercury.lcs.mit.edu
Subject: Re: Q Bus Music Board

 > From: Jim Stephens

 > That A6006 produces a hit in this document
 > ...
 > AAV11-C ANALOG OUTPUT BOARD
 > ...
 > 4 DACs, and a DC-DC converter.

Sounds like it might be a standard analog output board, for lab settings.
I'll bet the music thing is some marketing ploy, like the card game in 'The
Story of Mel'. (What, you haven't read 'The Story of Mel'?!? :-)

 Noel



I think IO have a couple of them but I never heard them play music. :-)

bill


I have two of them and a RT-11 program in macro that can output tones 
and clicks

music is just an extension of that.

To do music (or sounds with an D/A) card its a matter of moving a 
sequence of bytes/words
in a regular periodic rate representing the voltage for instant of the 
wave form.

For tones its a loop with values for amplitude, frequency, and wave shape.
For a simple output card its a matter of changing the state of a single 
bit at the required rate

(flip it once every half millisecond and you get a 1khz tone).

If an PDP-8, 6502, 8080 and many others can do it a pdp-11 and any 
output can.
Hell I've heard Line printers play music and asr33s rattling out a crude 
version of

Jingle bells complete with bell!

Allison








Re: story of Mel

2017-02-23 Thread allison

On 2/23/17 3:23 AM, Pontus Pihlgren wrote:

On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:

The sound (not music) card was actually a internally built and not sold
(that I know of).

There must have been a few though, since several claim to have one and
it even showed up on ebay.

(I'm just hoping I'l get lucky and find one.. I have an 11/73 with
graphics, it would be nice to add sound to it)

/P

Last time I needed just a beep it was the DTR line on the async card 
being flipped
by a simple loop.  If you flip it and leave it you get a click 
Obviously you need

an amplifier(maybe or a transistor) and speaker to hear it.

The sound card I have is not part of the OS (any) and there is no 
support so it does

nothing without code and a d/a or even a few bits will do sound.

FYI there was many articles in the micro world on doing sound and music
in Byte and DDJ back when (1975 to mid 80s) in the time before PCs and
sound cards.  For example Processor Technologies Music system.

See http://www.sol20.org/manuals/music.pdf for the manual on that.

I believe it was Polymorphic systems that did a polyphonic sound system
for z80 computers.

Those are samples of interest connected with computer music back then.


Allison


RE: story of Mel

2017-02-23 Thread Bill Gunshannon


From: cctech [cctech-boun...@classiccmp.org] on behalf of allison 
[ajp...@verizon.net]
Sent: Thursday, February 23, 2017 11:04 AM
To: cct...@classiccmp.org
Subject: Re: story of Mel

On 2/23/17 3:23 AM, Pontus Pihlgren wrote:
> On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:
>> The sound (not music) card was actually a internally built and not sold
>> (that I know of).
> There must have been a few though, since several claim to have one and
> it even showed up on ebay.
>
> (I'm just hoping I'l get lucky and find one.. I have an 11/73 with
> graphics, it would be nice to add sound to it)
>
> /P
>
Last time I needed just a beep it was the DTR line on the async card
being flipped
by a simple loop.  If you flip it and leave it you get a click
Obviously you need
an amplifier(maybe or a transistor) and speaker to hear it.

The sound card I have is not part of the OS (any) and there is no
support so it does
nothing without code and a d/a or even a few bits will do sound.

FYI there was many articles in the micro world on doing sound and music
in Byte and DDJ back when (1975 to mid 80s) in the time before PCs and
sound cards.  For example Processor Technologies Music system.

See http://www.sol20.org/manuals/music.pdf for the manual on that.

I believe it was Polymorphic systems that did a polyphonic sound system
for z80 computers.

Those are samples of interest connected with computer music back then.



I always thought music in the old days was more about MIDI and letting
something designed for it do the work ala Usenix Nashville 1991.

bill



Re: story of Mel

2017-02-23 Thread allison

On 2/23/17 11:16 AM, Bill Gunshannon wrote:


From: cctech [cctech-boun...@classiccmp.org] on behalf of allison 
[ajp...@verizon.net]
Sent: Thursday, February 23, 2017 11:04 AM
To: cct...@classiccmp.org
Subject: Re: story of Mel

On 2/23/17 3:23 AM, Pontus Pihlgren wrote:

On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:

The sound (not music) card was actually a internally built and not sold
(that I know of).

There must have been a few though, since several claim to have one and
it even showed up on ebay.

(I'm just hoping I'l get lucky and find one.. I have an 11/73 with
graphics, it would be nice to add sound to it)

/P


Last time I needed just a beep it was the DTR line on the async card
being flipped
by a simple loop.  If you flip it and leave it you get a click
Obviously you need
an amplifier(maybe or a transistor) and speaker to hear it.

The sound card I have is not part of the OS (any) and there is no
support so it does
nothing without code and a d/a or even a few bits will do sound.

FYI there was many articles in the micro world on doing sound and music
in Byte and DDJ back when (1975 to mid 80s) in the time before PCs and
sound cards.  For example Processor Technologies Music system.

See http://www.sol20.org/manuals/music.pdf for the manual on that.

I believe it was Polymorphic systems that did a polyphonic sound system
for z80 computers.

Those are samples of interest connected with computer music back then.



I always thought music in the old days was more about MIDI and letting
something designed for it do the work ala Usenix Nashville 1991.

bill


To you that's the old days.  To me its recent history.

Midi became the common bus to talk to instruments and drivers 
(keyboards, synthetic strings and all) of
all sorts.  It popped up in the early 80s as a viable bus for music and 
stage control IO.


Before midi...  when dirt was relatively new then, we used computers and 
software to do things like
flip the PDP-8 link bit and a speaker attached.Fancy would have been 
a R2R of 5 or 8 bits as simple
D/A on a parallel output port (or LP11) and with the right timing loops 
and maybe some data you could
synthesize any waveform and most any pitch.  if the machine was fast 
enough.  Of course you need a
music input too and something to compile it to data and commands (or did 
it using a #2 and paper).


There was a major conference in the 70s for computer generated music.  
Look up NOTRAN.


Allison




Re: story of Mel

2017-02-23 Thread allison

On 2/23/17 11:16 AM, Bill Gunshannon wrote:


From: cctech [cctech-boun...@classiccmp.org] on behalf of allison 
[ajp...@verizon.net]
Sent: Thursday, February 23, 2017 11:04 AM
To: cct...@classiccmp.org
Subject: Re: story of Mel

On 2/23/17 3:23 AM, Pontus Pihlgren wrote:

On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:

The sound (not music) card was actually a internally built and not sold
(that I know of).

There must have been a few though, since several claim to have one and
it even showed up on ebay.

(I'm just hoping I'l get lucky and find one.. I have an 11/73 with
graphics, it would be nice to add sound to it)

/P


Last time I needed just a beep it was the DTR line on the async card
being flipped
by a simple loop.  If you flip it and leave it you get a click
Obviously you need
an amplifier(maybe or a transistor) and speaker to hear it.

The sound card I have is not part of the OS (any) and there is no
support so it does
nothing without code and a d/a or even a few bits will do sound.

FYI there was many articles in the micro world on doing sound and music
in Byte and DDJ back when (1975 to mid 80s) in the time before PCs and
sound cards.  For example Processor Technologies Music system.

See http://www.sol20.org/manuals/music.pdf for the manual on that.

I believe it was Polymorphic systems that did a polyphonic sound system
for z80 computers.

Those are samples of interest connected with computer music back then.



I always thought music in the old days was more about MIDI and letting
something designed for it do the work ala Usenix Nashville 1991.

bill
Right after the creation of dirt was the first Philadelphia computer 
music Festival...

I have the vinyl created back then for it and its interesting listening.

https://www.vintagecomputermusic.com/notran_system.php

This is how it was done when programmer wrote  code.  ;)

Allison








Re: story of Mel

2017-02-23 Thread John Ames
> From: Bill Gunshannon 
> I always thought music in the old days was more about MIDI and letting
> something designed for it do the work ala Usenix Nashville 1991.
The MIDI control standard wasn't even finalized until 1983, and it
took a couple years to really proliferate after that. Most computers
at the time required a dedicated MIDI adapter because of its unusual
baud rate (31.25Kbaud, not one supported by most standard UART setups)
- the Mac, Amiga, and Atari ST could all handle MIDI with nothing more
than a breakout box (or, in the ST's case, its onboard ports,) but
those didn't roll out until 1984-1985.

Prior to that, most "computer music" was either using a few
proprietary computer-to-synthesizer interfaces such as Roland's DCB or
the DK Synergy's dedicated Kaypro software, or using onboard DACs or
simple PSG-style tone generators as being discussed here.


Re: story of Mel

2017-02-23 Thread Pontus Pihlgren
On Thu, Feb 23, 2017 at 11:45:44AM -0800, Glen Slick wrote:
> On Feb 23, 2017 12:23 AM, "Pontus Pihlgren"  wrote:
> 
> 
> (I'm just hoping I'l get lucky and find one.. I have an 11/73 with
> graphics, it would be nice to add sound to it)
> 
> 
> What do you have for graphics? I have a DEC VSV11 board set and a Matrox
> QC-640 board.

I have a few. A loose untested VSV90, a VTV01 in an 11/34 (also no 
tested), a loose VCB02, a Matrox boardset which I know little about, 
and VSV11 which should work.

/P