For some handy clarification - some of the tapes I saw seemed to be operating
system tapes for the MAX 32 computer.
Labeled things like "MAX 32 O/S & SUPPORT PART 2 OF 2" and "MAX 32 GLS -C
COMPILER"
1600 BPI, 9 track.
Also has MODCOMP copyrights, leading to this line of machines:
https://en
On 17/05/2023 04:56, Tony Duell via cctalk wrote:
EXACTLY! I was told that was the best solution for this sort of thing.
Are there any downsides to doing it that way?
If I do go that route, what are the options? I have no knowledge of
them and thus no preference for one over another
As I said a
On Wed, May 17, 2023 at 5:29 AM Fred Cisin via cctalk
wrote:
>
> >> Similarly, he could buy a cheap external USB 3.5" drive. Write content to
> >> that drive on the modern machine, and read those floppies on the older
> >> machines. The readily avaailable one have firmware that only supports
> >
On Wed, May 17, 2023 at 5:54 AM Chuck Guzis via cctalk
wrote:
>
> On 5/16/23 21:29, Fred Cisin via cctalk wrote:
>
> >> From what I've heard, there has been substantial progress on the flux
> > transition devices, with decoding the track to sectors, and even support
> > of some file systems!
> >
>
On Wed, 17 May 2023 at 05:29, Fred Cisin via cctalk
wrote:
>
> Have they stopped making ones that include 720K?
I have 2 USB floppy drives and have successfully read 720 kB disks
with them, and also MacOS 1.4 MB disks.
I think they should also write 720 kB disks.
What they won't handle are DD f
That is because Amiga uses GCR recording rather then FM or MFM.
On 5/17/2023 11:53 AM, Liam Proven via cctalk wrote:
On Wed, 17 May 2023 at 05:29, Fred Cisin via cctalk
wrote:
Have they stopped making ones that include 720K?
I have 2 USB floppy drives and have successfully read 720 kB disks
w
>Message: 21
>Date: Wed, 17 May 2023 04:56:05 +0100
>From: Tony Duell
>Subject: [cctalk] Re: ST-251 Data Recovery for Glenside Color Computer
>Club (GCCC)
>As for the target machine having a serial port, one of the machines I
>want to get stuff onto is an Osborne 1A. The serial port on
What they won't handle are DD formats that don't use the standardPC
disk controller: Amiga disk, DD Mac disks, etc.
The few external USB drives that I have tried can't even handle most of
the stuff that a standard PCdisk controller can. Their firmware is locked
in to a few specific formats, w
As for the target machine having a serial port, one of the machines I
want to get stuff onto is an Osborne 1A. The serial port on that is
horrible.
On Wed, 17 May 2023, Robert Feldman via cctalk wrote:
For CP/M computers such as the Osborne, you can read and write their
diskettes on an MS-DOS c
On 5/17/23 12:22, Fred Cisin via cctalk wrote:
> If you know of an external USB drive that does have the cpabilities of a
> standard PC disk controller, please tell us what you can of make, model,
> supplier, availability, etc.
Interestingly, the Micro Solutions Backpack floppy drives do have all
If you have access to a Gimix SS-50 6809 or 6800 system, Gimix used the
WD1791 in their double density disk controller. That controller can do
single and double density 5 1/2" and 8" disks (250KHz, 500KHz & 1MHz
data rates).
On 5/17/2023 2:38 PM, Fred Cisin via cctalk wrote:
As for the targe
On Wed, 17 May 2023, Mike Katz wrote:
If you have access to a Gimix SS-50 6809 or 6800 system, Gimix used the
WD1791 in their double density disk controller. That controller can do
single and double density 5 1/2" and 8" disks (250KHz, 500KHz & 1MHz data
rates).
Some NEC 765 controllers, inc
I have to agree with the folk on here who recommend some kind of flux
reader/writer like the greaseweazle.
It handles any format, handles most any data rate and has more ram/rom
and cpu horsepower than an old PC. And is the size of a deck of cards.
I have mine stored inside a dual 8" drive c
Please forgive my typo, you are correct it was 5 1/4 inch not 5 1/2 inch.
The read track function works somewhat on the WD1791 if it is able to
sync up. Sometimes you need to read a track several times to get it to
read correctly. It also starts reading at the first address mark it
finds and
On Wed, May 17, 2023 at 12:02:05PM -0500, Mike Katz via cctalk wrote:
> That is because Amiga uses GCR recording rather then FM or MFM.
Nope. You may have gotten confused with the Commodore 64 drives, which
were very Special, or perhaps early Apple gear.
The Amiga's disk controller supports both
That is because Amiga uses GCR recording rather then FM or MFM.
On Thu, 18 May 2023, Peter Corlett via cctalk wrote:
Nope. You may have gotten confused with the Commodore 64 drives, which
were very Special, or perhaps early Apple gear.
The Amiga's disk controller supports both GCR and MFM, bu
On Wed, May 17, 2023 at 8:38 PM Fred Cisin via cctalk
wrote:
> The earliest Osbornes were single density with ten 256 byte sectors per
> track. I was able to write some code on TRS80 model 1 to read those.
> Many PC FDCs, including the IBM 5150/5160, can not do FM/single-density.
>
> Then Osborne
On Wed, May 17, 2023 at 8:49 PM Chuck Guzis via cctalk
wrote:
> As much as Tony doesn't like it, I need to point out that a modern MCU
> quite often has as much (or more) RAM, and runs faster than many older
> PCs. Consider, for example, the lowly STM32H7A3 series. 1.4MB of RAM,
> 2MB of program
On Wed, May 17, 2023 at 9:28 PM Mike Katz via cctalk
wrote:
>
> I have to agree with the folk on here who recommend some kind of flux
> reader/writer like the greaseweazle.
OK, that's what I thought.
Now what are the options. Greaseweazle or ? What are the
advantages and disadvantates of eac
The earliest Osbornes were single density with ten 256 byte sectors per
track. I was able to write some code on TRS80 model 1 to read those.
Many PC FDCs, including the IBM 5150/5160, can not do FM/single-density.
Then Osborne came out with a "double density upgrade". The
MFM/Double-density Osbo
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