Hey folks. Does anyone here have any information about the Heath
ET100 "Educational Computer"? Specifically, I'm looking for keyboard
protocol information, as I have one that's lacking a keyboard, but
I'd like to find any other available documentation as well.
Thanks,
-Dave
--
Dave McGuire
Port Charlotte, FL
Hey all --
I suppose this is extremely unlikely, but does anyone have a spare
keyboard for a Beehive B-100 terminal? Picked this up awhile back and
it needs some repair (cap kit, etc...) but I assume that I'm probably
never going to find a matching keyboard for this thing :). I'm not
nearly ready to take this one on as a project, but I'm making a list of
things that I'm keeping vs. things that need to get into other hands,
and while I'd love to hold onto this, if I can't get a keyboard I'm
never going to get any use out of it...
Anyone have any leads?
Thanks,
Josh
eBay item 360098064240
I'm not usually one to spam the list, but thought someone local
might be interested. Looks like a nice opening price, with no
reserve. I have no relationship with the seller.
- Jared
I've seen an assortment of LA75 printers, many "new in the box"
on e-bay over the last several months.???Several were selling for
$19.95, plus shipping per printer. . .
I'm not sure what they're going for "today",
but it might be worth looking into.? .? .
T
>Jeff Erwin said the following on 10/13/2008 1:44 PM:
>> OK, time again to dust off the old brains out there. I found a ("the")
>> ISIS-II emulator that runs under dos, which comes with a PLM80 compiler.
It
>> also comes with link, locate, objhex and other goodies. The PLM80
compiler
>> identifies itself as PLM80 V4. I worked on the development of the
ISIS-II
>> stuff at Intel in the very early 80's as well as on the National
>> Semiconductor Starplex system (anyone remember that one?) so I am able to
> >tinker around and remember how most of this works, but version 4 of the
> >PLM80 compiler is getting the better of me.
>>
>Yes, I remember the Starplex. But about all I remember was that it was
>NS's development system and competed with Intel's MDS.
The Starplex was the NS answer to the MDS, but was much more 'late 70's' in
its design. The prom programmer was built into the system, as was the
screen and floppy drives. All very modular. I learned asm80 writing the
editor and assembler for that beast.
>> I have the PLM80 Programmer's Manual, but it is for earlier versions of
the
>>two-pass version of PLM80, version 4 was a single pass version that used
the
>>inker and locator, all of which was the precursor to the PLM86 compiler
and
>> tools. I believe this version came out shortly before the 8086 was
>> introduced, everyone went on to the segmented world and never looked
back,
>> which may explain why there isn't much out there for it. I am not able
to
>> locate any information on this version 4 of PLM80 anywhere, and the use
and
>> format is definitiely different from prior versions of PLM80.
>>
>I've used PL/M-80 extensively in the past, but I don't remember V4 being
>that much different than earlier versions. All versions of PL/M-80 that
>ran under ISIS-II used the linker and locater. The only version that I
>know of that didn't was the Fortran version that ran on mainframes. It
>produced absolute object code, usually in the form of an Intel hex format.
Version 4 was radically different from the 3.X and prior versions. The
earlier versions used the $X controls, version 4 used the controls that were
then used in the PLM86 compiler. Also, the DATA statement was eliminated
and other language constructs were changed. PLM80 V3 code would not compile
without mods. I remember it being released at about the same time the 8086
and PLM86 was was released and the effort was to make PLM80 and PLM86
somewhat similar. The PLM80 3.x docs are pretty much worthless if you are
using the 4.0 compiler. 4.0 was also one executable, a big change from the
PLM81 and PLM82 2-pass method the earlier versions used.
>> Anyone out there have any information or pointers for me? I have tried
all
>> of the excellent repositories of manuals and emailed Herb, his site
>> indicates that he might have what I need. Anyone have an ISIS-II set of
>> manuals sitting around that can check for me?
>>
>I'm sure I have a version of the manual that applies to V4 of the
>compiler. It *may* be in pdf form, but certainly on paper. Are there
>some specific questions that you have? I'll check when I get home
>tonight. At work now.
I'd love to get a copy of whatever you have relative to 4.0. Emailing the
PDF is probably easiest, I am more than happy to pay any costs associated.
>> Specifically, I am in need of:
>>
>> 98-00268B plm 80 programming manual, V4
>>
>> Thanks.
>>
>> Jeff Erwin
>>
>> By the way, I am running the ISIS-II emulator in a DOS box under windows,
>> itself an emulator. Windows is running under Parallels on my Mac Pro
which
>> is running OSx. Is it possible to get further from reality here??
>>
>I've done many "jobs" using that DOS emulator. It works great! And
>these days it is much faster than my real MDS systems. But it isn't
>nearly as elegant as the big blue box powering up, dimming the lights in
>my house, and the whir of cooling fans and glow of a real crt. Oh,
>those were the days.
>Dave
Yes indeed! The rumble of the 7Mb hard drive (14" across if I remember
right) as it spun up. My favorite, of course, is the famous "Error 7, User
PC = xxxx" which covered almost every error you could make...
> The later the version, the more MSCP boot devices are
> supported, and you're supposed to upgrade the ROMs in a KDF11 to match
> those in the RQDX1 or RQDX2 controller *and* vice-versa, and you should
> definitely use -BF or later for RQDX3.? Version -BG (called -BH in some
> places, it's the same ROM set and same code) introduced TK50 boot
> support, and -BJ refined that to make it more reliable.
That would make sense, then.
I had the -BF proms, when my 11/23+ had an RQDX3 and some RD52's.
(This was back around 1990-ish)
At that time, I was using?a Cipher F880?under?TSV05 emulation,
so I wouldn't have noticed the lack of MU boot support. . .??
The TK50 was on my "new" 11/73.
Darned if I can remember what I was running for disk back then.
Fujitsu Eagle, with an SC03, maybe???? ;-)
T
"Antonio Carlini" wrote:
>
>Well a 386 may not count as vintage yet (or ever ...) but isn't it more
>in keeping with the spirit of what we do here to hack, twist and bend
>the modern to fit in with the old, where possible? Shouldn't the OP pull
>a pin on a common or garden cable rather than drill a mobo connector?
I pulled the pin :-)
I got the compaq setup program to work but it would still not boot.
I'm sure the DS1287 rtc has lost it's battery but I would have thought
it would be ok as long as I didn't turn off the power.
I reset all the settings but it complains when I reboot that it does not
have it's settings. %^$^$^%$#$.
Am I high to think that if I buy one of the DS1287's on ebay it might
work? Or all those so old that it's a waste of money? Anyone try
lately?
A while back I brought an IPX back to life replacing the dallas chip,
but that was easily 5 years ago, maybe longer.
(I even tried putting the old compaq ESDI controller in a newer pc, but
it's not happy; it does auto discover the drive & geometry but the boot
fails with an error that looks like a bios problem)
I'm going after the DS1287 with a dremel tonight and solder a 3v battery
to it :-) hi ho!
-brad
This is something I've never seen before; I'm trying to revive an old
dead Compaq for a friend of a friend.
I went to plug in a stock VGA cable (15 pin) and it would not go. The
connector on the Dell motherboard (this is a very very old 386) has one
pin blocked.
Someone here must know what that means; what do I do? grab the needle
nose and hack my cable?
-brad
This is a somewhat OT request.
I'm trying to recover files from a 4 disk (3.5") floppy set of Sybase SQL
Anywhere for QNX Version 5.5.05.
The first thing I tried to do is mount the disks under Linux using the
QNX4 filesystem, but it bombs out. So I imaged the disks using ImageDisk
(of course) and looked at the image file. It doesn't contain a filesystem
as I had initially guessed, so now I'm trying to figure out what it
represents.
As best as I can currently determine it looks to be some sort of archive
that spans across multiple disks. I'm not sure if this is a Sybase
specific format, a QNX specific format, or what.
The disks all have the following similar header information on T0, S0:
vol 00001 00002 000000 5d69b244 11/Jul/99-17:00 wsql50
Disk 2 has:
vol 00002 00002 000000 f9f96f2f 11/Jul/99-17:00 wsql50
...etc. So the first group of digits is obviously the disk number, the
third group is probably some CRC hash, etc.
The contents of the disk are entirely binary. There is no text, lending
further evidence that this is some sort of compressed archive.
Does anyone recognize this as a header for a known archive format?
Any help or insight would be greatly appreciated.
--
Sellam Ismail Vintage Computer Festival
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