On Fri, Jan 5, 2018 at 3:45 PM, Dave Wade via cctalk
wrote:
> IBM invented the 8" floppy disk format. Generally their disks follow the
> standard 3740 format.
>
True for anything you're likely to encounter in the "real world", but in
the interest of muddying the waters I'll point out that IBM's
Thanks Lyle.
My biggest impediment at the moment is not actually having a PC that has a
floppy
drive. :-o
The other is time…work has been crazy as indicated by Jensen’s CES keynote
tonight where the chip that I’ve been working on was just announced! yea!
9,000,000,000 transistors!
TTFN - Guy
Hi Guy,
I just copied several IBM 8" Maintenance Device (MD) Diskettes - and
verified that the copies work on the IBM MD. They seem to be in an IBM
3x0 format (with a standard IBM VTOC).
Track 0 on the diskettes is 128 byte sectors,
Tracks 1 through 76 are 256 byte sectors.
The diskettes are DSSD
ne...@ezwind.net;
>> discuss...@ezwind.net:On-Topic and Off-Topic Posts
>>
>> Subject: Re: non-PC Floppy imaging
>>
>> On 01/05/2018 01:52 PM, Guy Sotomayor via cctalk wrote:
>>> Hi,
>>>
>>> I now have a number of uCode diskettes for my IBM
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jon Elson
> via cctalk
> Sent: 06 January 2018 02:50
> To: Guy Sotomayor ; gene...@ezwind.net;
> discuss...@ezwind.net:On-Topic and Off-Topic Posts
>
> Subject: Re: non-PC F
On 01/05/2018 01:52 PM, Guy Sotomayor via cctalk wrote:
Hi,
I now have a number of uCode diskettes for my IBM 4331. I would somehow like
to image them so:
a) I have backups in case the floppies themselves go bad
b) be able to investigate their contents in case I have to “merge” the contents
o
On 01/05/2018 02:45 PM, Dave Wade via cctalk wrote:
>
> IBM invented the 8" floppy disk format. Generally their disks follow the
> standard 3740 format. I would try that first.
>
> https://ub.fnwi.uva.nl/computermuseum/diskettes.html
>
I've got a pretty good pile of IBM 8" disks,from System/3
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Guy
> Sotomayor via cctalk
> Sent: 05 January 2018 19:53
> To: General Discussion: On-Topic and Off-Topic Posts
>
> Subject: non-PC Floppy imaging
>
> Hi,
>
> I now
On 2018-01-05 4:08 PM, Josh Dersch via cctalk wrote:
On Fri, Jan 5, 2018 at 11:52 AM, Guy Sotomayor via cctalk <
cctalk@classiccmp.org> wrote:
Hi,
I now have a number of uCode diskettes for my IBM 4331. I would somehow
like to image them so:
a) I have backups in case the floppies themselves
On Fri, Jan 5, 2018 at 11:52 AM, Guy Sotomayor via cctalk <
cctalk@classiccmp.org> wrote:
> Hi,
>
> I now have a number of uCode diskettes for my IBM 4331. I would somehow
> like to image them so:
> a) I have backups in case the floppies themselves go bad
> b) be able to investigate their content
I don’t know much about the system itself but if it used one of
the typical IBM 8” diskette formats, you may be able to use IMD or Teledisk and
an appropriate multi-density floppy controller. I’ve had pretty good success
with
On Fri, Jan 5, 2018 at 12:52 PM, Guy Sotomayor via cctalk <
cctalk@classiccmp.org> wrote:
> Hi,
>
> I now have a number of uCode diskettes for my IBM 4331. I would somehow
> like to image them so:
> a) I have backups in case the floppies themselves go bad
> b) be able to investigate their content
Hi,
I now have a number of uCode diskettes for my IBM 4331. I would somehow like
to image them so:
a) I have backups in case the floppies themselves go bad
b) be able to investigate their contents in case I have to “merge” the contents
of multiple floppies to
make a single good one
These
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