Subject was: Re: Craziest ebay price EVER
On Fri, 2006-10-27 at 00:19 +0100, Tony Duell wrote:
Maybe in a
hundred years... when they are actual antiques. I know
the feeling, though. I've got an old Monroe (Litton) OC-8820, possibly
the finest CP/M machine ever made in one package. I saw one on eBay,
I am not sure what you mean by 'in one package'. I personally think the
Epson QX10 is one of the nicest CP/M machines ever, but that has a
separate monitor and keyboard so it might not be 'one package'.
What I mean by "one package" is that the machine is a complete
computer -- monitor and keyboard built in. One plug, one diskette, and
you're off... My personal preference is for separates, in computers,
hi-fi, video, and most other things where there is a choice. That
allows one to get the best of <insert category here> and replace any
item if a superior type shows up. The Monroe, however, had a screen of
similar quality and "feel" to that of the Amdek 310-A. Very easy on the
eyes. The keyboard was also of high quality, and the whole machine was
ergonomically efficient for a built-together. Also, as in stereo
equipment, MOST of the "one package" systems were substandard for their
time, in my opinion. Not all, but most.
I'm also partial to the RML380Z, but mainly
becasue that was the first
CP/M machine I used )at school).. And to be honest, CP/M was a let-down
after the LDOS I used at home on my TRS-80 Model 1.
Perhaps... But CP/M was a hobbyist O/S that sort of became the
industry standard. Cool, in a way. The closest thing to THAT today is
Linux, and that's a tad bit complicated (and too good) for hacking it to
be much use.
Oh, by the
way... This is my first post. (Just throw roses...)
Welcome to the list!
I'm an oldie, and feeling at home already.
Besides modern stuff, most
don't have all that much space. I'm a
true expert in CP/M, and 8080 and
^^^^^^^^^^
I would be careful about saying things like that here. There are some
very knowledgable people here (I am not one of them), and it's worth
being very sure of your facts before starting a flamewar.
Thanks for the welcome, and thanks for the advice. I know my
limits. At one time (but no longer, I just checked) I had ALL the CP/M
BDOS calls memorized, I used them so much. I'll grant you CP/M was a
rather little pool, but I was a big fish in that pool. I'm adrift when
it comes to Windows calls... and, I ended up USING quite a few O/S
platforms over time, but never gained the skill in any of them I had in
CP/M. Now it sounds like I should tell the kids to keep off my lawn
after I talk about it. <Grin> It WAS nice to be the master of the
world for a while...
I try to avoid flame wars. I'm not always successful. They're
pointless for the most part. I've heard it said that winning a flame
war on the 'Net is like getting the Gold Medal in the Special Olympics.
When all is said and done, it would be better to not be retarded in the
first place. There's at least some truth to that.
And, truth be told, it's clear that a lot of the people I've seen
post in the last 24 hours obviously know a lot more than I do about
quite a few things. That is as it should be. Normally, I'm the alpha
geek wherever I am, so it's refreshing to think I'll be LEARNING things
for a change. So far, it reminds me of the Aloha Computer Club back in
the 70s... Everybody is knowledgeable, and some VERY much so, but all
experienced in somewhat different areas. Seems like a friendly group,
too. I'm a painfully honest person (I know, I know, liars say that,
too) so I'll let people know when I don't know something. But, I have
picked up quite a bit of knowledge since 1971, when I started out with
computers by dialing in to an HP 2000B timeshare BASIC machine. It's
odd, spotty knowledge, but, one never knows WHAT issue is coming up
next...
6809 assembly
language. Am currently looking for a repair manual for
the Monroe, as it has crapped out. I have *** ALL *** the software for
Produce your own repair manual. I've done it (but not for that machine).
It's not that hard to trace out schematics of a classic computer [1],
it's then not too hard to interpret what they mean and what should be
happening...
Can I claim laziness as an excuse? I know what you mean, a friend
of mine used to make repair manuals for obsolete, orphan, test
equipment. I do recall how he used to smoke a cigarette, drink his
coffee, and stare at circuit boards for hours on end, and how,
occasionally, he would set down the coffee, stub out the cigarette, walk
calmly outside, close the door, and primal scream into the night. He
would then come back in, sigh, light another cigarette, take a sip of
coffee, and go back to staring. I have reached a point in my life where
I value my time and blood pressure more than the $50 bucks or so for an
old manual.
In any case, you might not need a schematic. What does
'crapped out'
mean? Have you checked the power supply outputs (at least the 5V line
should be easy to find)? Is there a clock signal at the CPU? Are the
buses doning anything? What about address lines on the DRAMs,
RAS/CAS/etc?
Symptom is no video. I don't have access to a 'scope any more,
since the ex left mine out in the rain for me to pick up a couple years
back. I'm not really desperate to get the Monroe running again, but I'd
enjoy having a schematic and seeing if I can think my way through it...
At the
risk of being branded a heretic with my first post, I have to
say I'm a fan of the 2.8 megabyte DSL I have now, compared with the 110
baud Teletype 33 KSR I first used... In computers more than any other
field, time improves the process. On the down side, I was secure in
that NOBODY knew any MORE than I did about an 8080 machine with CP/M.
There were quite a few people who knew AS MUCH, but nobody knew more.
It's not like that any more -- it's WAY more complicated, by several
This is one reason I stick to the older machines. I understand them. I
know what every last chip a PERQ CPU does. I can see the connections, hang
my 'scope and logic analyser on them and sort it out.
I hear you, brother. I know my IMSAI that way... but no other. I
didn't put the Monroe together, and that's a handicap to understanding.
I'm an NIST certified calibration technician, so I'm not intimidated by
attacking a problem with only a 'scope and a schematic, but I don't have
the familiarity with the Monroe I would with the IMSAI. There's
something cool about that all-encompassing knowledge.
orders of
magnitude. Gone are the days when you can just whip up your
own O/S for a computer you designed and built, and have it compete. At
Why? Nobody's stoping you using old chips, surely?
Oh, no, not at all. When I whipped up a computer, though, when I
got done I had something better than most people owned. I can't do that
now, unless you call buying a motherboard off the shelf, dropping a CPU
into it, and plugging in the various cards "building a computer." I
suppose it IS, technically, but not the way *I* mean it. Anything I
could build now would draw comments like "Oh, isn't that cute" rather
than "Oh, my God, that thing's a demon!" Not the same.
Peace,
Warren E. Wolfe
wizard at
voyager.net