10 Sep
2012
10 Sep
'12
3:39 p.m.
one other question - shouldn't it be relatively easy to write a program that
recognizes another IBM pseudo compatible's MS-DOS format? If for instance you wanted
to read NEC APC disks on a Canon AS-100.
The Leading Edge Model M (fully peecee s/w compatible) tech ref manual states it not only
can use quads but 8" drives. I forget the specifics, but it has an 8272/NEC pd765 (so
does the NEC APC. Funny that the aftermarket board/5 1/4" drive set that I have for
it uses a WD chip).
10 Sep
10 Sep
4:03 p.m.
On Mon, 10 Sep 2012, Chris Tofu wrote:
one other question - shouldn't it be relatively
easy to write a program
that recognizes another IBM pseudo compatible's MS-DOS format? If for
instance you wanted to read NEC APC disks on a Canon AS-100.
What do you mean by "pseudo compatible"?
Such as MS-DOS on a Victor 9000?
If you have a rather limited selection, then you could esasily write a
program which identifies which one from a short list.
For complete unknowns, you'll find that the number of variations is
rather large.
The Leading Edge Model M (fully peecee s/w compatible)
tech ref manual
states it not only can use quads but 8" drives. I forget the specifics,
but it has an 8272/NEC pd765 (so does the NEC APC. Funny that the
aftermarket board/5 1/4" drive set that I have for it uses a WD chip).
WHICH
WD chip?
WD did make some that were kinda 765 compatible.
But not all.
4:57 p.m.
________________________________
From: Fred Cisin <cisin at xenosoft.com>
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Sent: Monday, September 10, 2012 4:03 PM
Subject: Re: which 8" drive are most likely to work w/a stock high density
controller?
On Mon, 10 Sep 2012, Chris Tofu wrote:
one other question - shouldn't it be relatively
easy to write a program
that recognizes another IBM pseudo compatible's MS-DOS format? If for
instance you wanted to read NEC APC disks on a Canon AS-100.
What do you mean by "pseudo compatible"?
C: Various machines from the early-mid 80s which ran MS-DOS (their own version), but
little else in the way of IBM s/w. Ones where the salesmen lied through their teeth about
the machine's compatibility. Although many did eventually sport oem or aftermarket add
ons that greatly increased their IBM s/w compatibility. Those which come to mind are the
TI Pro, Wang, Rainbow, NEC APC III. The Epson QX-10 (Z80) had the Titan board, but I'm
not sure how compatible the QX-16 was stock.
Such as MS-DOS on a Victor 9000?
C: I gave 2 examples.
If you have a rather limited selection, then you could esasily write a
program which identifies which one from a short list.
C: Ok, I have a bunch of NEC APC I disks. I hope to read them (hope springs eternal). I
have little more then a little hope that they still work. I'd like to read them on my
Canon AS-100. I have NO docs for the AS-100, and little more then boiler plate for the
APC.
?C: I also have an IBM DisplayWriter w/8" drives, but the prospects that presents are
all scary. I have an Intel MDS drive cabinet, that has a rather codependent relationship
w/the 2 8" drives. I was astounded and nauseated when I actually bothered to look.
For complete unknowns, you'll find that the number of variations is
rather large.
C: The number of different formats? So, and although my selection is quite small, I guess
it isn't trivial for a program to randomly search for format marks. I would have
thought otherwise. But what do I know.
The Leading Edge Model M (fully peecee s/w compatible)
tech ref manual
states it not only can use quads but 8" drives. I forget the specifics,
but it has an 8272/NEC pd765 (so does the NEC APC. Funny that the
aftermarket board/5 1/4" drive set that I have for it uses a WD chip).
WHICH
WD chip?
C: I don't remember exactly, Either the 1770, 1771, or 1772 (I think there was a 1772,
no?).
WD did make some that were kinda 765 compatible.
But not all.
C: To God be the glory. But I would have thought though that the 765 would have been the
choice for 5 1/4" drives, and the WD family for larger ones. But again there's
yet another exhibition of how little I know.
?I just don't understand why I can never get an answer to my original question...
5:52 p.m.
What do you mean by "pseudo compatible"?
On Mon, 10 Sep 2012, Chris Tofu wrote:
OK, but be aware that many people reserve the word "compatible" for only
those machines that are so close that they will run IBM PC software.
Some people would list your examples as "NON-compatible MS-DOS machines"
And then there are plenty in between, such as the Sanyo, RS model 1000,
Toshiba T300, etc. That can run SOME PC software, but not all.
There used to be "testing" of levels of compatibility, usually based on
stuff that was completely irrelevant, such as would it run "Flight
Simulator" or the "5150 ONLY version of XenoCopy" (PCWorld January 1984?)
I estimate there to be about 2500 different soft sector disk formats.
What I did in XenoCopy was to have an option of having ity look at the
disk, to rule out all formats with different number of sides, different
number of sectors, bytes per sector, etc.
Howard Fullmer (Morrow designs) attempted [unsuccessfully] to do automatic
format recognition.
But, there is nothing stopping you from doing things such as looking where
you think directory entries MIGHT be, etc.
C: I don't remember exactly,
Either the 1770, 1771, or 1772 (I think
there was a 1772, no?).
OK, so NOT one of their NEC compatible chips.
WD did make some that were kinda 765 compatible.
But not all.
C: Various machines from the early-mid 80s which ran
MS-DOS (their own
version), but little else in the way of IBM s/w. Ones where the salesmen
lied through their teeth about the machine's compatibility. Although
many did eventually sport oem or aftermarket add ons that greatly
increased their IBM s/w compatibility. Those which come to mind are the
TI Pro, Wang, Rainbow, NEC APC III. The Epson QX-10 (Z80) had the Titan
board, but I'm not sure how compatible the QX-16 was stock.
Such as MS-DOS
on a Victor 9000?
C: I gave 2 examples. C: Ok, I have a bunch of NEC APC I disks. I hope to
read them (hope
springs eternal). I have little more then a little hope that they still
work. I'd like to read them on my Canon AS-100. I have NO docs for the
AS-100, and little more then boiler plate for the APC.
Well, I'd recommend starting by getting code working to read them on an
ordinary PC. THEN, once that is working, try to port that code to the
Canon, etc. For example, how do you read a sector on the Canon?
Does it have an Int13h that is close enough in calling structure?
Does it have a similar INT1Eh if you need to change bytes per sector,
etc., or will you need to talk directly to the chip? WD 179x chips have a
completely different communication than NEC 765 -like chips.
The NEC is not too bad.
One gotcha is that the 3.5" HD format is done at 360 RPM at 500K bits per
second, whereas the stock PC 3.5" drives are 300 RPM. You'll need to do a
little work to find compatible 3.5" drives.
The 8" disks, 5.25' HD, and 3.5" HD all had identical format!
NEC APC, in addition to MS-DOS, ALSO had a CP/M-86, AND a
"Stand-alone-BASIC" (similar to the Coco disk format) Last time that I
heard from Don Maslin was when he and I collaborated with Sellam to read
some NEC APC 8" Stand-alone-BASIC disks. (As far as I know, there is no
official name for that format) Don emailed me hex-dumps of the DIRectory
tracks and I determined which blocks of the disks to read.
?C: I also have an IBM DisplayWriter w/8" drives,
but the prospects that
presents are all scary. I have an Intel MDS drive cabinet, that has a
rather codependent relationship w/the 2 8" drives. I was astounded and
nauseated when I actually bothered to look.
For complete
unknowns, you'll find that the number of variations is
rather large.
C: The number of different formats? So, and although my selection
is
quite small, I guess it isn't trivial for a program to randomly search
for format marks. I would have thought otherwise. But what do I know. aftermarket board/5 1/4" drive set that I have
for it uses a WD chip).
WHICH WD chip? C: To God be the glory. But I would have thought
though that the 765
would have been the choice for 5 1/4" drives, and the WD family for
larger ones. But again there's yet another exhibition of how little I
know.
WD was the one used in Kaypro, TRS80, and many others.
Until IBM PC dominated the market, and people flodded to NEC 765 for
compatibility, there hadn't been a clear edge of one V the other.
The WD179x can do a few things easily that can't be done (or barely) on
the NEC765. Many people prefer it over the NEC765
?I just don't understand why I can never get an
answer to my original
question...
"You have to ask the right question"
AND include enough of the details!
--
Grumpy Ol' Fred cisin at xenosoft.com
6:16 p.m.
________________________________
From: Fred Cisin <cisin at xenosoft.com>
OK, but be aware that many people reserve the word "compatible" for only
those machines that are so close that they will run IBM PC software.
C: I didn't say "compatible", but "pseudo-compatible". Pseudo
kinda means "fake-" or "not really-".
C:? Me and Tony use the term. I'm not ready to give him credit for coining the term
(I'd have to go over my notes and see when I started using it). I guess you need to be
a member of the elite to understand the nuances of such terminology.
Some people would list your examples as "NON-compatible MS-DOS machines"
C: *sigh*
And then there are plenty in between, such as the Sanyo, RS model 1000,
Toshiba T300, etc.? That can run SOME PC software, but not all.
There used to be "testing" of levels of compatibility, usually based on
stuff that was completely irrelevant, such as would it run "Flight
Simulator" or the "5150 ONLY version of XenoCopy" (PCWorld January 1984?)
C: Yes vendors would pull whatever strings necessary to get certain programs to run,
thereby declaring their machine passed the test.
?C: Personally if the dog didn't run StarFlight, it wasn't any good (i.e a fake or
pseudo compatible). Ok let the record show that I invented the term "fake
compatible" on 9/10/12 at 6:15 pm EST.
I estimate there to be about 2500 different soft sector disk formats.
What I did in XenoCopy was to have an option of having ity look at the
disk, to rule out all formats with different number of sides, different
number of sectors, bytes per sector, etc.
Howard Fullmer (Morrow designs) attempted [unsuccessfully] to do automatic
format recognition.
But, there is nothing stopping you from doing things such as looking where
you think directory entries MIGHT be, etc.
C: I wouldn't know where to look. Eyes are going along w/my knees.
C: I don't remember exactly,
Either the 1770, 1771, or 1772 (I think
there was a 1772, no?).
OK, so NOT one of their NEC compatible chips.
WD did make some that were kinda 765 compatible.
But not all.
C: Ok, I have a bunch of NEC APC I disks. I hope to
read them (hope
springs eternal). I have little more then a little hope that they still
work. I'd like to read them on my Canon AS-100. I have NO docs for the
AS-100, and little more then boiler plate for the APC.
Well, I'd recommend starting by getting code working to read them on an
ordinary PC.
C: That's like putting the horse on the cart and pulling it w/my teeth! Understand I
don't even know which drives will WORK on a peecee.
? THEN, once that is working, try to port that code to the
Canon, etc.
C: LOL LOL
?For example, how do you read a sector on the Canon?
C: I honestly could not tell you.
Does it have an Int13h that is close enough in calling structure?
C: Beats me
Does it have a similar INT1Eh if you need to change bytes per sector,
etc., or will you need to talk directly to the chip?? WD 179x chips have a
completely different communication than NEC 765 -like chips.
C: That I could have told anyone
The NEC is not too bad.
One gotcha is that the 3.5" HD format is done at 360 RPM at 500K bits per
second, whereas the stock PC 3.5" drives are 300 RPM.? You'll need to do a
little work to find compatible 3.5" drives.
The 8" disks, 5.25' HD, and 3.5" HD all had identical format!
C: I believe I've plugged hd 5 1/4" drives into my Canon though, w/little
success. It utilizes both 5" and 8" off the same connector.
NEC APC, in addition to MS-DOS, ALSO had a CP/M-86, AND a
"Stand-alone-BASIC" (similar to the Coco disk format)? Last time that I
heard from Don Maslin was when he and I collaborated with Sellam to read
some NEC APC 8" Stand-alone-BASIC disks.? (As far as I know, there is no
official name for that format)? Don emailed me hex-dumps of the DIRectory
tracks and I determined which blocks of the disks to read.
C: somewhere on the order of 10 years ago a guy named Yogi in California won a huge
motherload of APC docs for 1$. I mean dozens of manuals, totally unreal. I might have to
look him up.
C: Wouldn't snooping through the rom code give an indication of where sector marks
would be positioned? Or am I again exhibiting a total ignorance of this affair?
?C: I also have an IBM DisplayWriter w/8" drives,
but the prospects that
presents are all scary. I have an Intel MDS drive cabinet, that has a
rather codependent relationship w/the 2 8" drives. I was astounded and
nauseated when I actually bothered to look.
For complete
unknowns, you'll find that the number of variations is
rather large.
C: The number of different formats? So, and although my selection
is
quite small, I guess it isn't trivial for a program to randomly search
for format marks. I would have thought otherwise. But what do I know. aftermarket board/5 1/4" drive set that I have
for it uses a WD chip).
WHICH WD chip? C: To God be the glory. But I would have thought
though that the 765
would have been the choice for 5 1/4" drives, and the WD family for
larger ones. But again there's yet another exhibition of how little I
know.
WD was the one used in Kaypro, TRS80, and many others.
Until IBM PC dominated the market, and people flodded to NEC 765 for
compatibility, there hadn't been a clear edge of one V the other.
The WD179x can do a few things easily that can't be done (or barely) on
the NEC765.? Many people prefer it over the NEC765
?I just don't understand why I can never get an
answer to my original
question...
"You have to ask the right question"
AND include enough of the details!
C: I was so sure I did. Perhaps it's unwise to put a question on the subject line.
Oi.
--
Grumpy Ol' Fred? ? ??? ??? cisin at xenosoft.com
6:41 p.m.
Pseudo derives from the Greek ??????, (pseudes) which means "lying". So it means
exactly fake:) Aristophanes in one of his plays even has a Persian ambassador character
named Pseudartabas - "false measure".
--------
Paul Anderson -- VE3HOP
On 2012-09-10, at 6:16 PM, Chris Tofu <rampaginggreenhulk at yahoo.com> wrote:
________________________________
From: Fred Cisin <cisin at xenosoft.com>
OK, but be aware that many people reserve the word "compatible" for only
those machines that are so close that they will run IBM PC software.
C: I didn't say "compatible", but "pseudo-compatible". Pseudo
kinda means "fake-" or "not really-".
7:38 p.m.
On Mon, 10 Sep 2012, Paul Anderson wrote:
Pseudo derives from the Greek ??????, (pseudes) which
means
"lying". So it means exactly fake:) Aristophanes in one of his plays
even has a Persian ambassador character named Pseudartabas - "false
measure".
But, by meaning fake, it could mean "completely not the same", or so good
a fake that it's hard to tell the difference from the real thing.
A "pseudo IBM XT" would mean a fake XT, like those perfectly infringing
Chinese imitations. (sometimes called a "clone")
11 Sep
11 Sep
3:08 p.m.
________________________________
From: Fred Cisin <cisin at xenosoft.com>
On Mon, 10 Sep 2012, Paul Anderson wrote:
Pseudo derives from the Greek ??????, (pseudes) which
means
"lying". So it means exactly fake:) Aristophanes in one of his plays
even has a Persian ambassador character named Pseudartabas - "false
measure".
But, by meaning fake, it could mean "completely not the same", or so good
a fake that it's hard to tell the difference from the real thing.
A "pseudo IBM XT" would mean a fake XT, like those perfectly infringing
Chinese imitations. (sometimes called a "clone")
C: Pseudo, at least in my head, can seem to indicate takes on some characteristics of
what's it's copying. But falls short. Hence the usage of pseudo-compatible. Off
the top of my pointy head, all "ms-dos compatibles", which is in itself a
misleading term (chances are every term will end up being misleading) could read IBM
formatted disks. Probably all used extended ASCII. So there are different levels of
compatibility. All used BASIC probably. Not all were BIOS compatible, but by necessity all
were dos services compatible.
As you point out the usage of pseudo is at best ambiguous, if not altogether misleading.
Oi whatever. Maybe pseudo should be abolished in favor of in-
3:02 p.m.
________________________________
From: Paul Anderson <wackyvorlon at me.com>
Pseudo derives from the Greek ??????, (pseudes) which means "lying". So it means
exactly fake:) Aristophanes in one of his plays even has a Persian ambassador character
named Pseudartabas - "false measure".
C: Pseudepigrapha - falsely attributed works, "faked" authorship. Or something
close. Takes on more meaning if it refers to religious works.
10 Sep
10 Sep
8:03 p.m.
On Mon, 10 Sep 2012, Chris Tofu wrote: ?
If you want to write software that runs on the Canon, then working through
that would be a place to start.
Good! Then you've got a start on what you bneed to learn.
C: I don't remember exactly,
Either the 1770, 1771, or 1772 (I think
there was a 1772, no?).
OK, so NOT one of their NEC compatible chips.
C: Personally if the dog didn't run StarFlight, it
wasn't any good (i.e
a fake or pseudo compatible). Ok let the record show that I invented the
term "fake compatible" on 9/10/12 at 6:15 pm EST.
duly noted. Are you sure that you are the first?
C: Ok, I have a bunch of NEC APC I disks. I hope to
read them (hope
springs eternal). I have little more then a little hope that they still
work. I'd like to read them on my Canon AS-100. I have NO docs for the
AS-100, and little more then boiler plate for the APC.
Well, I'd recommend starting by getting code working to read them on an
ordinary PC.
C: That's like putting the horse on the cart and pulling it w/my teeth!
Understand I don't even know which drives will WORK on a peecee.
Yep! Any "ordinary" "standard" (HAH!) 8" drive will work. But,
you might
need to try a bunch of controllers to find one that's OK.
? THEN, once
that is working, try to port that code to the
Canon, etc.
C: LOL LOL
?For example, how do you read a sector on the
Canon?
C: I honestly could not tell you.
Does it have an Int13h that is close enough in
calling structure?
C: Beats me Does it have a
similar INT1Eh if you need to change bytes per sector,
etc., or will you need to talk directly to the chip?? WD 179x chips
have a completely different communication than NEC 765 -like chips.
C: That I
could have told anyone > C: I believe I've plugged hd 5 1/4"
drives into my Canon though,
> w/little success. It utilizes both 5" and 8" off the same connector.
Then you need to work on jumpers. Starting with Drive select.
C: somewhere on the order of 10 years ago a guy named
Yogi in California
won a huge motherload of APC docs for 1$. I mean dozens of manuals,
totally unreal. I might have to look him up.
Good. Find him.
C: Wouldn't snooping through the rom code give an
indication of where
sector marks would be positioned? Or am I again exhibiting a total
ignorance of this affair?
No, you're right that it will give you about half of what you need to
know.
The other half is gonna require looking at sectors on the disk, to
determine things such as how many sectors does it have for each copy of
the FAT, etc.
> But, there is nothing stopping you from doing
things such as looking
> where you think directory entries MIGHT be, etc.
C: I wouldn't know where to look. Eyes are going along w/my knees.
Start with a hex dump of a formatted disk with nothing on it, and a hex
dump of a disk with one file, and a hex dump of a disk with lots of files.
aftermarket board/5 1/4" drive set that I have
for it uses a WD chip).
WHICH WD chip? ?I just don't understand why I can never get an
answer to my original
question...
SA 800
All others are just copies of it. (with improvements)
11 Sep
11 Sep
3:23 p.m.
________________________________
From: Fred Cisin <cisin at xenosoft.com>
duly noted.? Are you sure that you are the first?
C: Until someone proves otherwise, I'm damned sure.
If you want to write software that runs on the Canon, then working through
that would be a place to start.
C: I AIN'T GOT NO DOCS. Nor even a working boot diskette no more! Can't even try
out that int 13h stuff if I wanted to. AND I WANT TO!!
Good!? Then you've got a start on what you bneed to learn.
C: Oh I'm learning quite a bit dont' worry. I'm learning constantly that this
project is dead in the water.
C: Ok, I have a bunch of NEC APC I disks. I hope to
read them (hope
springs eternal). I have little more then a little hope that they still
work. I'd like to read them on my Canon AS-100. I have NO docs for the
AS-100, and little more then boiler plate for the APC.
Well, I'd recommend starting by getting code working to read them on an
ordinary PC.
?C: Again if I had the ability to read them on a pc, what need would there be for code?
ImageDisk would take care of that.
Yep!? Any "ordinary" "standard" (HAH!) 8" drive will work.? But,
you might
need to try a bunch of controllers to find one that's OK.
C: So the suggestion may be that all drives will work, as long as you have the right
controller. It's just a matter of mixing and matching properly. Man I am so up a creek
w/o a paddle!
Does it have
an Int13h that is close enough in calling structure?
C: Beats me Does it have a
similar INT1Eh if you need to change bytes per sector,
etc., or will you need to talk directly to the chip?? WD 179x chips
have a completely different communication than NEC 765 -like chips.
C: That I
could have told anyone > C: I believe I've plugged hd 5 1/4"
drives into my Canon though,
> w/little success. It utilizes both 5" and 8" off the same connector.
Then you need to work on jumpers.? Starting with Drive select.
C: On the drive? Give me some credit.
C: somewhere on the order of 10 years ago a guy named
Yogi in California
won a huge motherload of APC docs for 1$. I mean dozens of manuals,
totally unreal. I might have to look him up.
Good.? Find him.
C: I very well may find him. A lot of good that'll do me though, he doesn't have a
single page of AS-100 docs. Which is the computer I need to get to reading them disks.
SA 800
All others are just copies of it.? (with improvements)
C: I assume you mean Shugart. Ain't never even seen one.
?These disks have probably crapped the bed anyway, weren't stored properly. I've
not yet played w/8" disks. Are they anymore durable then 5 1/4" media (that is
have greater longevity)?
8:16 p.m.
C: I believe
I've plugged hd 5 1/4" drives into my Canon though,
w/little success. It utilizes both 5" and 8" off the same connector.
Then you need to work on jumpers.? Starting with Drive select. 
8:34 p.m.
On 11 Sep 2012 at 17:16, Fred Cisin wrote:
Start with the computer!
Get it to try to boot, and see which lines change state on the cable.
If it's pin 12, then PC jumpering of the drive might work. If it's pin
10, then it mimics the civilized world.
THEN jumper the drive to match what the computer is sending.
With 8" drives, you can often set the motor to just stay running.
Got a scope?
Once you have drive select, motor on, and head load, then start
looking for data.
In addition, most 5.25" HD drives use pin 34 on the interface for
DISK CHANGED rather than READY. 8" drives all have READY outputs (a
few have an option for DISK CHANGED in addition).
--Chuck
10 Sep
10 Sep
7:57 p.m.
On 10 Sep 2012 at 12:39, Chris Tofu wrote:
one other question - shouldn't it be relatively
easy to write a
program that recognizes another IBM pseudo compatible's MS-DOS format?
If for instance you wanted to read NEC APC disks on a Canon AS-100.
The APC (nee N5200) uses the same MS-DOS format that any of the PC98
systems had--regardless of physical media size. That is 3.5, 5.25
and 8" all use the same format--and all are designed for 360 RPM
spindle speeds (that's why the 3.5" format is labeled as 1.23MB).
Would that IBM have been that savvy.
77x2x8x1024. I even wrote a PeeCee driver for the format decades ago
(wander around SIMTEL and you might find it). Remember that any PC98
program that does not restrict itself to the MS-DOS system API will
likely fail. The BIOS conventions are different, as are niblets such
as hardware ports.
Remember that, at one time, the NEC PC98 series had 70% of the
Japanese PC market. It was very prevalent in the CNC business,
even for machines that were sold into the US market by NEC
competitors such as HItachi.
--Chuck
11 Sep
11 Sep
3:10 p.m.
________________________________
From: Chuck Guzis <cclist at sydex.com>
On 10 Sep 2012 at 12:39, Chris Tofu wrote:
one other question - shouldn't it be relatively
easy to write a
program that recognizes another IBM pseudo compatible's MS-DOS format?
If for instance you wanted to read NEC APC disks on a Canon AS-100.
77x2x8x1024.? I even wrote a PeeCee driver for the format decades ago
(wander around SIMTEL and you might find it).?
C: Thanks, but that doesn't solve the problem of which drive to use w/that peecee. I
started making an adapter to connect the APC drives to a pc centuries ago. I might pick
that back up, but I'm dubious of it's utility.
3:12 p.m.
________________________________
From: Chuck Guzis <cclist at sydex.com>
...MS-DOS system API....
C: I was going to say isn't that an anachronism. Like the usage of the longbow in
Ivanhoe? I've done it myself, but IINM no one used the term until probably the early
90s.
4:32 p.m.
_____________________
From: Chuck Guzis <cclist at sydex.com>
...MS-DOS system API....
C: I was going to say isn't that an anachronism. Like the usage of the
longbow in Ivanhoe? I've done it myself, but IINM no one used the term
until probably the early 90s.
I'm not certain, but it was in use during the early versions of
Windows. I'll have to check my files to see if it was used in the
pre-release of MS-DOS 2.0 developer's documentation. That would make
it exactly contemporary.
As far as what drive for 8" DOS-V floppies--any 8" drive capable of
handling double-sided media. A single-sided drive isn't going to be
of much use. I like the Siemens FDD-200 or Qumetrack/8, but there
are plenty of choices. You may have more of a problem finding an
appropriate power supply.
--Chuck
5:09 p.m.
________________________________
From: Chuck Guzis <cclist at sydex.com>
As far as what drive for 8" DOS-V floppies--any 8" drive capable of
handling double-sided media.
C: I have the APC drives. Can't remember make or model #.
?A single-sided drive isn't going to be
of much use.? I like the Siemens FDD-200 or Qumetrack/8, but there
are plenty of choices.? You may have more of a problem finding an
appropriate power supply.
C: I secured a 24vdc supply many moons ago.
4365
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bfranchuk＠jetnet.ab.ca -
cclist＠sydex.com -
cisin＠xenosoft.com -
rampaginggreenhulk＠yahoo.com -
wackyvorlon＠me.com