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> > Remember, Xenix was originally a Microsoft product, they then sold it off
> > to SCO (for a % ownership in SCO)
> >
>
> Actually Xenix was never a Microsoft branded product. It was Microsoft's
> but they only sold Xenix as OEM'd versions to vendors like SCO and lots
> of HW vendors who then added they modifications to support their specific
> products (like Apricot, whose machines were far from plain PCs).
We may not all mean the same thing by "branded", but ISTR
seeing the banner "Microsoft XENIX" on that Radio Shack 68000
machine whose model number I can never recall...
-dq
In my latest box of DEC docs came a "Programmer's Reference Series"
manual for an Eclipse S/140, circa 1981 or so. useful to anyone?
bill
--
Bill Bradford
mrbill(a)mrbill.net
Austin, TX
SCO had their own flavor of Unix IIRC.
At 04:02 PM 11/11/01 -0500, you wrote:
> >
> > Remember, Xenix was originally a Microsoft product, they then sold it off
> > to SCO (for a % ownership in SCO)
> >
>
>I had thought SCO was a spin-off of Microsoft...
>
>What were they known for prior to XENIX?
>
>-dq
>
> Remember, Xenix was originally a Microsoft product, they then sold it off
> to SCO (for a % ownership in SCO)
>
I had thought SCO was a spin-off of Microsoft...
What were they known for prior to XENIX?
-dq
>I never had problems as you describe, nor have I ever heard of anyone
>needing to adjust the alignment of an Apple disk drive.
>
>As far as I know, there is no procedure in the Disk ][ manual for aligning
>a drive, and as far as I know, there is no reason for needing one.
I don't know if it was alignment (I think it was speed), but I had a
program that you would run, and you would adjust the drive via a small
pot IIRC until the program said it was correct (again, I think it was
speed).
I DO know that as my Drive ][ drives got older, I found I had to do this
operation more and more to keep them functioning (when it needed
adjustment, it would just fail to read a disk).
I also used the Drive ][ primairly stacked next to my Apple ][+, with the
monitor on top, or on a shelf just above (when I moved to a color TV with
line in as a monitor, as it was just too heavy to safely place on top of
the Apple). I never had problems (other than speed issues, or once a game
wrote high scores to the disk despite being write protected).
My company had a number of Apple II+'s with drive II's stacked on the
Apple with the monitor on top of the drives, and non ever had a problem.
I used an Apple IIe with a dual drive box that sat on top of the Apple,
and the monitor (IIRC, greenscreen Apple branded) sat on top of the
drives. Never had a problem with that setup. (and the previous owner only
ever used it that way for years, and had no problems).
And I am probably a good test of real world abuse to the Apple Drive ][
drives, as I was just a wee child, and I didn't follow any rules that I
probably should have. (I always put the disk in the drive, closed it, and
turned on the computer... I would pull disks out, and replace them while
the drive was reading or writing, I would power off the computer or reset
it during read/write, I didn't use dust sleaves, I touched the disk media
directly, wrote with ball point pens on the disk labels AFTER putting
them on the disk, I used cheap no name brand bulk disks of any kind, and
used a hole punch to make them double sided... and at one point, even
stapled a peice of paper to a disk... and that staple is the ONLY time I
can think of that I screwed up a disk... two holes and a long dent will
do that. So I would have to say, the Apple II disk system was pretty
freakin' stable and reliable to put up with all my abuse)
-chris
<http://www.mythtech.net>
On November 8, Roger Merchberger wrote:
> At the risk of sounding like Homer Simpson... Oooohh... Nutella...
> I've had it once, and that is some *fantastic* stuff...
>
> *Still* trying to get my uncle to send me some from Deutschland. I ask only
> rarely (because I forget to "pester" him) and he forgets to bring some back
> when he comes (he usually comes back to the states once or twice a
> year...). :-(
>
> Find a way to get me a jar or two, and I'll forgive that "indigenous" remark...
Huh? Where do you live, Roger? I just (like two days ago) moved to
Florida, but I used to buy it in the Giant supermarket back in
Maryland. It never seemed difficult to find. I will look around down
here the next time I go to the supermarket. If I can find it here I'd
be happy to ship you some.
-Dave
--
Dave McGuire
St. Petersburg, FL
Hi Joe...
Thanks for your message in classiccmp.
You have already helped me more than you can know,
with that web page of yours.
What a great resource to find after I typed in "MDS 225" into a search
engine and then found your site.
You see I've had this MDS 225 that a friend found in a basement of a house
he bought and knowing I was into computers offered it to me.
I thought I knew quite a bit about computers until I saw this thing.
What was it! I had to know.
Thanks for your help and take care.
Doug Taylor (Techno)
Sysop of the "Dead On Arrival BBS"
Telnet://doabbs.dynip.comhttp://www-mtl.look.ca/~techno
techno(a)dsuper.net
Doug Taylor (Techno)
Sysop of the "Dead On Arrival BBS"
Telnet://doabbs.dynip.comhttp://www-mtl.look.ca/~techno
techno(a)dsuper.net
>> I also used the Drive ][ primairly stacked next to my Apple ][+, with
>> the monitor on top, or on a shelf just above (when I moved to a color
>> TV with line in as a monitor, as it was just too heavy to safely place
>> on top of the Apple). I never had problems (other than speed issues,
>> or once a game wrote high scores to the disk despite being write
>> protected).
>
>You're write protect sensor broke off somehow. This happened to me once,
>and occasionally I'll get a drive that has this problem. Relatively easy
>to fix.
I don't think it broke off, but malfunctioned (or somehow, the software
hit a glitch that managed to override it, if that is possible).
I had been playing the game for hours, and each time it tried to write
the high score, it would think it wrote, but when the high score board
was shown, nothing was saved. Then on one occasion, it actually wrote to
it (confirmed that it wasn't just stored in memory as I still have the
write protected disk to this day with my high score saved on it). The
following game rounds it went back to failing to actually write to the
disk.
That was literally, the ONLY occasion that the drive in question ever
pulled that trick, so I doubt anything was "broken" on the drive, just
that it malfunctioned the one time.
It has been a head scratcher for me ever since. I never knew if it was a
sensor malfunction, or if somehow the software overrode the drive's write
protect (which for some nagging reason I thought was possible, as I
thought I had non writeable disks [one with no notch at all] that could
be written to to register software... but I might be wrong on that). My
other (and more plausable theory) is that my write protect sticker had
enough play in it, that a physical switch sensor might have been right on
the verge of writeable (although, I don't know if those drives used a
finger as a sensor, or a light beam, or how far a finger has to pass thru
the disk to see it as writable)
-chris
<http://www.mythtech.net>
