In the 1990s, I started writing about floppy disks, how FM/MFM worked,
IBM/WD track and sector structure, directory structures, DOS Utilities,
disk repair, etc. But, got bogged down with too much to do, such as
closing my office, etc., . . .
On Sun, 10 Sep 2023, Ali wrote:
Now this would be
> In the 1990s, I started writing about floppy disks, how FM/MFM worked,
> IBM/WD
> track and sector structure, directory structures, DOS Utilities, disk
> repair,
> etc.
> But, got bogged down with too much to do, such as closing my office,
> etc., . .
> .
Now this would be an interesting book
If you want to build a ship, don't drum up people to collect wood and
don't assign them tasks and work, but rather teach them to long for the
endless immensity of the sea.
On Sun, 10 Sep 2023, Sellam Abraham via cctalk wrote:
We must teach Fred to long for the endless immensity of the written
On Sun, Sep 10, 2023, 4:12 PM Will Cooke via cctalk
wrote:
>
>
> > On 09/10/2023 3:00 PM CDT Fred Cisin via cctalk
> wrote:
> >
> >
> > On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
> > > Now, let's talk about 2.8" and 3.25" drives; UK readers are certainly
> > > familiar with 3.0 inch CF
On Sun, Sep 10, 2023 at 3:12 PM Will Cooke via cctalk
wrote:
> I make an official motion that Fred write his own "Everything I Know About
> Floppy Disks" page / book /encyclopedia.
>
> I suspect that what is inside his head is the greatest collection of
> knowledge about floppies on the planet.
https://youtu.be/W6mJB9ovES4
I had two model 14s set up, details in the video description :)
I got the chance to attend another great VCF! This time in Chicago over
this past weekend.
Most images should be able to click and enlarge (if not, wiggle the page a
bit and try again).
https://voidstar.blog/vcf-mw-midwest-2023/
On Sun, 10 Sep 2023, Will Cooke via cctalk wrote:
I make an official motion that Fred write his own "Everything I Know
About Floppy Disks" page / book /encyclopedia.
I suspect that what is inside his head is the greatest collection of
knowledge about floppies on the planet.
Fred, you will be
> On 09/10/2023 3:00 PM CDT Fred Cisin via cctalk wrote:
>
>
> On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
> > Now, let's talk about 2.8" and 3.25" drives; UK readers are certainly
> > familiar with 3.0 inch CF drives used on Amstrads.
> Amdek? sold a dual 3" drive in USA, marketed as
On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
Can't say, but probably. I've got an 8" disk here written by an Apple
II. Encoding is weird--basically the Apple RWTS encoded as 8 bit FM
(3740) bytes. Haven't bothered to see from whence it came.
On 9/10/23 13:31, Fred Cisin via cctalk
On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
Can't say, but probably. I've got an 8" disk here written by an Apple
II. Encoding is weird--basically the Apple RWTS encoded as 8 bit FM
(3740) bytes. Haven't bothered to see from whence it came.
Sorrento Valley Associates sold an FDC for
On Sun, Sep 10, 2023 at 2:24 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 9/10/23 13:31, Fred Cisin via cctalk wrote:
> > On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
> >> Can't say, but probably. I've got an 8" disk here written by an Apple
> >> II. Encoding is
On 9/10/23 13:31, Fred Cisin via cctalk wrote:
> On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
>> Can't say, but probably. I've got an 8" disk here written by an Apple
>> II. Encoding is weird--basically the Apple RWTS encoded as 8 bit FM
>> (3740) bytes. Haven't bothered to see from whence
On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
Can't say, but probably. I've got an 8" disk here written by an Apple
II. Encoding is weird--basically the Apple RWTS encoded as 8 bit FM
(3740) bytes. Haven't bothered to see from whence it came.
Sorrento Valley Associates sold an FDC for
On 9/10/23 13:00, Fred Cisin via cctalk wrote:
> On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
>> Now, let's talk about 2.8" and 3.25" drives; UK readers are certainly
>> familiar with 3.0 inch CF drives used on Amstrads.
>
> Amdek? sold a dual 3" drive in USA, marketed as external drives.
>
On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
Now, let's talk about 2.8" and 3.25" drives; UK readers are certainly
familiar with 3.0 inch CF drives used on Amstrads.
Amdek? sold a dual 3" drive in USA, marketed as external drives.
There were ads for it in one or more of the Coco
On 9/10/23 12:39, Fred Cisin via cctalk wrote:
> On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
>> There are 40 track derivatives; used for word processing, particularly
>> on some Brother models. No big deal; when reading those, one simply
>> double-steps a "normal" drive. In any case, as
On Sun, 10 Sep 2023, Chuck Guzis via cctalk wrote:
There are 40 track derivatives; used for word processing, particularly
on some Brother models. No big deal; when reading those, one simply
double-steps a "normal" drive. In any case, as far as I recall, they
all used Brother's proprietary GCR
It's odd that he brings up things such as 100tpi drives (VS 96tpi)
and 3" (but not 3.25" on which Dysan bet the company), the very early 40
track 3.5",
On Sun, 10 Sep 2023, Joshua Rice via cctalk wrote:
What confused me, is that i believe the 3.5" Sony Microfloppy originally had
70 tracks.
On 9/10/23 09:44, Liam Proven via cctalk wrote:
> No idea of the CPU performance. 4MHz Z80A but whether there was any
> contention or anything I have no idea. I believe one of the
> interesting bits of the design is that there's no ROM at all. They
> came with a dedicated printer (as well as a
On Sun, Sep 10, 2023 at 05:44:59PM +0100, Liam Proven via cctalk wrote:
[...]
> No idea of the CPU performance. 4MHz Z80A but whether there was any
> contention or anything I have no idea. I believe one of the
> interesting bits of the design is that there's no ROM at all. They
> came with a
On Sun, 10 Sept 2023 at 16:09, Chuck Guzis via cctalk
wrote:
>
> UK readers are certainly
> familiar with 3.0 inch CF drives used on Amstrads.
Oh yes indeed. I think I have, in my basement in Prague, two Amstrad
PCW 9512 machines, an original 9512 (1987, one 3" drive) and a 9512+
(1991, one 3.5"
On 9/10/23 07:35, Joshua Rice via cctalk wrote:
> What confused me, is that i believe the 3.5" Sony Microfloppy originally
> had 70 tracks. I'm personally completely oblivious to any 40-track 3.5"
> microfloppy formats.
>
> I have a pair of Sony OA-D30V drives, which i believe were the first
>
On 09/09/2023 00:02, Fred Cisin via cctalk wrote:
It's odd that he brings up things such as 100tpi drives (VS 96tpi)
and 3" (but not 3.25" on which Dysan bet the company), the very early
40 track 3.5",
--
Grumpy Ol' Fred ci...@xenosoft.com
What confused me, is that i believe the
On Sun, 10 Sept 2023 at 15:16, Jay Logue via cctalk
wrote:
>
> Has anyone reached out with corrections?
Yes, me. I pointed him at Fred's response, he was very pleased, and
he's updated it. (I can't see much difference but I am not so expert
as Mr Cisin at this stuff. There's a revision history
On 9/8/2023 16:02, Fred Cisin via cctalk wrote:
It's odd that he brings up things such as 100tpi drives (VS 96tpi)
and 3" (but not 3.25" on which Dysan bet the company), the very early
40 track 3.5",
the use of FDC for certain tape drives, LS120, but not floptical, ZIP,
etc.
And, of course
Apologies to the list for the noise.
This email was supposed to be sent directly to Paul, my mistake.
Have a nice Sunday,
Pierre
-
http://www.digitalheritage.de
- Weitergeleitete Nachricht -
Von: P
Hi Pierre,
Yes, I remember and I'm doing ok thanks. I hope all is well with you.
I just found a CI750 print set last week, But I won't have much time to
look at it for a week or so.
If you send me the board part number and the chip number I should be able
to find you the part number.
Thanks,
Hello Paul,
how are you doing? Hope that healthwise, things are fine on your side since our
last conversations a few years ago. I bought an RK611 controller back then from
you.
Just came accross your below post and was wondering if you have any
CI750-related equipment around?
I have the
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