> MSX-DOS was created by Tim Paterson as a port to Z80 of MS-DOS 1.25. The
> rest,
> and hardware, was primarily Japanese, but later marketed everywhere except
> USA.
I remember a handful of MSX-type systems in the USA, though, and some were
widely advertised, like the pre-/almost-MSX Spectra
> On Oct 9, 2024, at 1:38 PM, Chuck Guzis via cctalk
> wrote:
>
> Anent strange floppy formats--I recall there being one in the early 70s
> that used a UART to encode an entire track (1 sector per track). I'm
> not talking about using a USRT-but an honest-to-goodness 8-bit plus
> parity start
On Wed, Oct 9, 2024, 2:45 PM Zane Healy via cctalk
wrote:
>
> On a related note, Paul, do you have any idea if RSTS/E can be installed
> from a CD-ROM? I’ve done installs of RT-11 and RSX-11M+ from CD, but
> couldn’t figure out how to do a RSTS/E install from CD. I can’t remember
> if I was abl
On Wed, 9 Oct 2024, Wayne S via cctalk wrote:
My pleasure. Be aware that not all floppy disks were written the same way.
Regardless of different filesystems, there were different flux encoding schemes
too.
MOST are FM, MFM, or GCR.
But not all.
f'rinstance, Amiga is MFM, but does not use WD/I
Hmmm, MSX
I only knew of MSX here in Australia (circa 1985/6 ish) because the
shop where I hung out, ogling Toshiba T300 PC compatibles has an MSX
machine they were trying to sell. I recall its colorful keyboard
Kindest regards,
Doug Jackson
em: d...@doughq.com
ph: 0414 986878
Follow my a
On 2024-10-09 2:30 p.m., Fred Cisin via cctalk wrote:
MSX is unknown in USA!
It was for Z80, and the disk format was MS-DOS
. . .
Generic PC clones got so cheap here that nobody would buy Z80 any more.
On Wed, 9 Oct 2024, ben via cctalk wrote:
I thought it was the cheap apple clones that di
My pleasure. Be aware that not all floppy disks were written the same way.
Regardless of different filesystems, there were different flux encoding schemes
too.
Sent from my iPhone
On Oct 9, 2024, at 15:07, Tom Stepleton wrote:
Thanks Wayne! It's handy to get topical advice, as interesting a
Thanks Wayne! It's handy to get topical advice, as interesting as musings
about Gary Kildall and CP/M floppy standards may be :-)
Cheers,
--T
On Wed, Oct 9, 2024 at 8:38 PM Wayne S wrote:
> Tom, make sure to clean the heads of the floppy drive and check the heads
> to see if they don’t have any
On Wed, 9 Oct 2024, Chuck Guzis via cctalk wrote:
Anent strange floppy formats--I recall there being one in the early 70s
that used a UART to encode an entire track (1 sector per track). I'm
not talking about using a USRT-but an honest-to-goodness 8-bit plus
parity start-stop, etc. device.
Was t
On Oct 9, 2024, at 10:22 AM, Paul Koning via cctalk
wrote:
>
> Earlier there was a question about MSCP disk sizes. I did some checking.
>
> RSTS understands all the devices known by name in SIMH, including the "giant"
> RF73. As of the "big disk" support, which is in V10.1 and I think a few
On 2024-10-09 2:30 p.m., Fred Cisin via cctalk wrote:
MSX is unknown in USA!
It was for Z80, and the disk format was MS-DOS
I saw some at comdex.
I waited for MSX machines to showup here, but it never happened,
although I did find [and buy] a Yamaha MSX machine from Waite Group, at
John Craig'
Anent strange floppy formats--I recall there being one in the early 70s
that used a UART to encode an entire track (1 sector per track). I'm
not talking about using a USRT-but an honest-to-goodness 8-bit plus
parity start-stop, etc. device.
Was that one an OSI innovation?
-Chuck
I used several which did. MGT G+DOS was my personal favourite. MSX-DOS
is CP/M-binary-compatible but uses MS-DOS FAT disks, with directories,
because the same chap wrote them both: Tim Paterson.
On Wed, 9 Oct 2024, ben via cctalk wrote:
That is new to me, but what cpu?
Where are the ADS for sai
Tom,
If you would like some known good disks to test with, I'd be glad to format
a few 8 inch disks for you to use as test disks. Just email me and we can
figure it out. Chuck sent me a few disks when I was first setting up my 8
inch drives a few years back and that was invaluable. I'd be gl
Tom, make sure to clean the heads of the floppy drive and check the heads to
see if they don’t have any sharp edges, from excessive wear, that could damage
the disk. Also spin it up with a scratch disk to see if it spins okay.
Check the source disk for mold and dirt and see if it spins smoothly
Re: Obscure disk formats.
There is a couple projects with hardware that attempt and are pretty successful
at doing this, including decoding the many copy protection schemes.
Applesauce seems to be the most successful due to the creator being very
involved and responsive to solving new issues. The
Roger are you aware of Applesauce and Greaseweasel?
Sent from my iPhone
> On Oct 9, 2024, at 11:50, ben via cctalk wrote:
>
> On 2024-10-09 4:08 a.m., Liam Proven via cctalk wrote:
>>> On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote:
>>> Dos also has no subdirectories.
>> (?)
>
>
>>> So d
On Wed, Oct 9, 2024 at 8:40 AM Liam Proven via cctalk
wrote:
> MGT made a range of disk interfaces for the ZX Spectrum.
>
> https://en.wikipedia.org/wiki/Miles_Gordon_Technology
>
> Little known in America but the Spectrum was one of the best-selling
> microcomputers of all time, selling millions
Earlier there was a question about MSCP disk sizes. I did some checking.
RSTS understands all the devices known by name in SIMH, including the "giant"
RF73. As of the "big disk" support, which is in V10.1 and I think a few
earlier versions, it can handle something that big. It draws the line
On 10/9/24 07:49, Chuck Guzis via cctalk wrote:
> https://ftldesign.com/Timex/
>From the above article:
"The unit is as simple to operate as a standard record player; nothing
to thread, no tape to break or tangle, no needles to wear out, no
complicated controls, no accidental erasures."
So Fred
On Wed, 9 Oct 2024 at 15:50, Chuck Guzis via cctalk
wrote:
>
> The whole thing could be summarized under "How I spent my summer
> vacation" or "The big C and me".
Ohshit. Sorry to hear that. I hope that they nuke you till you glow
and it's successful.
--
Liam Proven ~ Profile: https://about.me
On Wed, 9 Oct 2024, Chuck Guzis via cctalk wrote:
Floppy disk, wuzzat?
I think it's one of these: https://i.imgur.com/XyzsyeD.jpg
:D
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people
On 10/9/24 02:55, Liam Proven via cctalk wrote:
> On Wed, 9 Oct 2024 at 02:25, Chuck Guzis via cctalk
> wrote:
>
>> (still kicking, barely)
>
> Oh no! Glad to hear that you are, but something prompted that... Dare I ask?
The whole thing could be summarized under "How I spent my summer
vacation"
On 2024-10-09 4:08 a.m., Liam Proven via cctalk wrote:
On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote:
Dos also has no subdirectories.
(?)
So did the hundreds of other 8 bit operating
systems.
(??)
The point here, was until hard disks with the PC became common you had
the tiny mi
On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote:
> Dos also has no subdirectories.
(?)
> So did the hundreds of other 8 bit operating
> systems.
(??)
I used several which did. MGT G+DOS was my personal favourite. MSX-DOS
is CP/M-binary-compatible but uses MS-DOS FAT disks, with directories,
On Wed, 9 Oct 2024 at 01:05, Fred Cisin via cctalk
wrote:
>
> By refusing to create a "secondary" standard, he avoided dilution of
> the standard
Well, I mean yes, in a theoretical ideal world.
https://xkcd.com/927/
But in fact, what he really did was make DOS FAT the standard. With
versions fo
On Wed, 9 Oct 2024 at 02:25, Chuck Guzis via cctalk
wrote:
> (still kicking, barely)
Oh no! Glad to hear that you are, but something prompted that... Dare I ask?
--
Liam Proven ~ Profile: https://about.me/liamproven
Email: lpro...@cix.co.uk ~ gMail/gTalk/FB: lpro...@gmail.com
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