Looks more like data, than code.
Telephone Details.Select
On Wed, 11 Jan 2017, Adrian Graham wrote:
By the same reasoning 0xD9 could be XRL A,R1 (opcode 11011xxx) and 0xDD
could be XRL A,R5 but can't match the others. Also the surrounding code
doesn't mention those registers.
Exampl
On Wed, 11 Jan 2017, Adrian Graham wrote:
Well, this is ROM dumps of a telephone system so that would make sense for
some of it, but surely a disassembler should also recognise that it's ASCII
string data and treat it accordingly? I can imagine a freeware disassembler
maybe making that mistake bu
Quite realistic would be for a disassembler that couldn't recognize an
opcode to display it as
DB 1A ; Esc
DB 65 ; 'e'
DB 09
Code immediately following an unconditional JMP is likely to be data, but
could just as easily be the destination of some other JMP, so a
disassemble can't make assumpti
Opposite end of the size scale:
Epson RC-20
wristwatch with Z80 equivalent, RAM, ROM, serial port
katakana - not exported to USA
On Thu, 12 Jan 2017, Cory Heisterkamp wrote:
Given the topic, I have this rather *unique* punch card reader, if you want
to call it that. It is marked EAI but that's where the trail turns cold.
Perhaps used as a microcode source? All holes are read simultaneously via
individual switches. If someo
jsr puts
fcc 'Hello, world!',13,0
clra
or the classic:
JMP START1
DATA2: DB . . .
DB . . .
START1: MOV DX, OFFSET DATA2
Which was heavily used because
MOV DX, OFFSET DATA3
. . .
DATA3: DB . . .
would
On Thu, 12 Jan 2017, Ethan Dicks wrote:
I'm sure there are people who are offended and/or horrified by the
question. The number of responses (or lack thereof) will likely
indicate the size of that pool.
My upper limit has been at $800 surprisingly often.
After I purchased the "Technical Refer
Not all strings are null-terminated. In CP/M, and MS-DOS INT21h Fn9, the
terminating character is '$' !
"If you are ever choosing a termination marker, choose something that
could NEVER occur in normal data!"
Also, strings may, instead of a terminating character, be specified with a
length, or wi
On Sat, 14 Jan 2017, Chuck Guzis wrote:
Given all of that, the 1620 did perform lots of useful work. Later
versions of the machine after the CADET added functionality, but AFAIK,
never addressed the problem of the inability to read the P-counter from
a program.
half a century ago, there was a
check look at this listing they mention 38 mm?
_http://www.ebay.com/itm/BAUSCH-amp-LOMB-STEREO-ZOOM-MICROSCOPE-38mm-RING-LI
On Sat, 14 Jan 2017, Chuck Guzis wrote:
Looks to be 38mm indeed. Rather than burn $40 on a protective filter,
I'll probably just buy one of the Chinese coated "peel and
On Mon, 16 Jan 2017, Al Kossow wrote:
In mid-1975, John W. Seybold, the founder of Seybold Publications, and
researchers at PARC, incorporated Gypsy
software into Bravo to create Bravo 3, which allowed text to be printed as
displayed. Charles Simonyi and the other
engineers appropriated Flip
On Mon, 16 Jan 2017, Tony Duell wrote:
My point is that a very similar phrase ('What you see, you get') was
used by a camera manufactuer
some 15 years earlier (at least).
Can you find any of the ads for earlier SLRs?
Exakta dates from late 1930's, but there were almost certainly a few more
obs
On Mon, 16 Jan 2017, allison wrote:
That lead to WYSIWYG pronounced as wizzywhig, from the former what you see is
what you get. There were variations
as well.
Good point!
The phrase is obviously older, and probably much older than Flip Wilson.
BUT, the acronym is much more recent. I first
On Tue, 17 Jan 2017, Tapley, Mark wrote:
Back when they were new, a friend of mine brought his out of his car,
set up, and worked for about 1/2 hour before realizing he’d left the
keyboard in the car. Don’t know how fun an experience you’d have,
particularly if you are not as absent-minded as
According to IMDB, the Mac Plus that Scotty addressed by speaking into the
mouse in "Star Trek : The Voyage Home",
"The computer that Scotty uses to show transparent aluminum was originally
going to be an Amiga, but Commodore would only provide a computer if they
bought it. Apple Computers was w
On Fri, 20 Jan 2017, shad wrote:
Hello,
I'm remembering of an old post on vcfed, somebody found in the dump a lot
of tapes and floppies related to DPS6.
IIRC Al Kossow contacted the man to have the dump of the disks...
Maybe he has something?
In computers, "dump" isn't s'posed to mean land
On Mon, 23 Jan 2017, Randy Dawson wrote:
I have luggable with the famous Keytronics foam kepad rot.
WHAT model Compaq?
8088? 80286?
On Thu, 26 Jan 2017, Eric Smith wrote:
On Wed, Jan 25, 2017 at 8:07 PM, Chuck Guzis wrote:
"Transactions of Society of Actuaries"
1959, Volume 11, Number 31
On a system like that, how much time could elapse between, "We (customer)
are switching to..."?
decision
planning
negotiating
contrac
Even the phrase "shipped" need not be when the customer starts printing out
the nine billion names of god. (1953, so it predates the 7074)
OK, that was a "Mark V, Automatic Sequence Computer".
In the story, Chuck (no last name, so not confirmed to be OUR Chuck),
had the last word: "Look"
ht
In the story, Chuck (no last name, so not confirmed to be OUR
Chuck), had the last word: "Look"
http://downlode.org/Etext/nine_billion_names_of_god.html
On Thu, 26 Jan 2017, Chuck Guzis wrote:
I remember reading that one many years ago. The bit about the stars
quietly winking out at the end st
On Sat, 28 Jan 2017, Randy Dawson wrote:
I have a Compact Flash adapter and card, while I wait for the soldering
iron to heat up and make the power cable for it, I wanted to ask, what
are the next steps?
FORMAT, or FDISK /MBR?
It is not clear what you are attempting to do.
If you have a driv
On Sat, 28 Jan 2017, Alexandre Souza wrote:
Simple way I got several XT-IDE working:
- Boot with freedos boot disk
- FDISK /MBR
- FDISK and create ONE 31MB partition (note it is 31MB and not 32MB)
It SHOULD be possible to create an almost 2GB partition with DOS 3.31 or
above. Has to be "almos
On Sun, 29 Jan 2017, geneb wrote:
I've got a Panasonic JU-455-5 AAG (5.25, 360K) that I'd like to use in a
Can't help with those manuals. Gave them away long ago.
But, be aware that that same drive was also sold as the Shugart 455,
Matsushita 455, and National?
The Shugart printing of the ma
A sad day: The father of Pac-Man, Masaya Nakamura, passed away. I
remember playing this on very early microcomputers.
On Mon, 30 Jan 2017, Alfred M. Szmidt wrote:
How about some credit where credit is due, and not rewriting history
willynilly. Toru Iwatani was the designer (not Nakamura) of
If you think that, you _really_ need to read 3676.
Nobody's going to read that the way that it is formatted.
If they expect people to read it, they will have to punch it up, with
fonts, colors, background images and textures, formats, animated emojis,
audio accompaniment, and embedded videos
information, end of support for XP, involuntary Win7 to Win10 upgrade,
etc.
I intended it to be absurd enough to provide some humor.
It apparently failed at that.
Sorry.
On Tue, Jan 31, 2017 at 7:09 PM, Fred Cisin wrote:
If you think that, you _really_ need to read 3676.
Nobody&#
I intended it to be absurd enough to provide some humor.
It apparently failed at that.
Sorry.
On Thu, 2 Feb 2017, Ian S. King wrote:
Fred, you have to turn it up to 11 - after all, consider your competition
these days in the domain of absurdity.
It wouldn't be so bad, if people just said tha
On Fri, 3 Feb 2017, Eric Smith wrote:
Hmmm...
I think I'll make a box that you plug into a computer and it tells you 'U5
is faulty'.
It won't be magic, though...
:-)
Other than plugging in to the computer (USB?), the rest of it could
probably be done in software.
What would the "System Requ
On Thu, 9 Feb 2017, Warner Losh wrote:
Speaking in absolutes in the IP field is often unwise.
Only:
"Don't mess with the mouse."
In addition to occasional changes in the laws and in their interpretation,
there is always the issue, as mentioned in one of the early posts, that
annoying the dr
On Thu, 9 Feb 2017, Liam Proven wrote:
"Here's the code. To use it, you'll need ROM images and images of
software. These are not provided and won't be, so don't ask. Get your
own and it is your problem to ensure that you are legal."
Is there a QUALITATIVE difference between FREE distribution an
On Fri, 10 Feb 2017, Alfred M. Szmidt wrote:
I think also that whatever your decision is, that people should simply
respect that. Better be safe than sorry after all.
Absolutely!
Whether or not WE think that there is a danger is not the point.
And, whether we think that the LAW would rule fav
I'd love to see more info on when one was successfully enforced on an
end-user.
On Fri, 10 Feb 2017, Alfred M. Szmidt wrote:
Wikipedia is a good start.
ProCD, Inc. v. Zeidenberg
On Fri, 10 Feb 2017, geneb wrote:
Interesting read, thanks.
That case upheld the click-through/shrinkwrap adhe
I assume that the shutdown of Slysoft (ANYDVD) was facilitated by DMCA.
On Sat, 11 Feb 2017, Eric Smith wrote:
I don't know, but I rather doubt it. The MPAA and/or studios would have
publicized a victory against Slysoft.
That would make sense. At least as far as I understand it, and would s
On Mon, 13 Feb 2017, W2HX wrote:
Thanks for doing this project and I have signed up! Curious why mini usb
and why the exclamation points regarding "NOT micro?" Micro is so
common. I have tons of usb-micro cables for all my devices. I don’t
think I've seen a device made in the last several years
Maybe someone with a key and a set of callipers can match up a blank at
Home Depot and measure it up :P
NO.
Try a LOCKSMITH.
Home Depot does not have a selection of keys. They have some car keys,
some padlock keys (that MIGHT match), and TWO house keys (Schlage SC1 and
Kwikset KW1, although t
On Tue, 14 Feb 2017, Jerry Kemp wrote:
Hello Fred,
Thank you for the post.
This is really a chicken vs egg issue here.
Apparently, no one right now has a copy of this key.
No one seems to even have a picture of the key.
There have been a couple of pictures + eBay sales shared that show, what I
w
This is a peripheral. USB OTG doesn't apply, and USB-A would be
"inappropriate". Pretend this is an inkjet printer. What plug would
you expect to find on that?
On Tue, 14 Feb 2017, Chris Elmquist wrote:
A Centronics-style 36-pin Amphenol.
oh, sorry.
("blue-ribbon")
A DB25
Howzbout a DE-9
Personally, i don't care about lead free solder. I am quite happy with lead. Is
there a rohs requirement for small production, non profit, prototyping project?
On Tue, 14 Feb 2017, Tony Duell wrote:
Personally I _do_ care about lead free solder. I won't have it. The
fact that part
of this board
On Tue, 14 Feb 2017, geneb wrote:
Worse case, just take the lock switch out of the chassis and find a local
locksmith that'll make you a key. It's a pretty common thing for them.
A properly designed lock can not be removed with the case closed.
A properly designed case can not be opened with t
On Tue, 14 Feb 2017, Ken Seefried wrote:
I'd be fascinated at a justification for this opinion that squared
with "John C. Calhoun’s legacy as a white supremacist and a national
leader who passionately promoted slavery as a ‘positive good’".
And, once he graduated from Yale in 1804, he turned hi
Besides, Kaczynski was Harvard, not Yale.
On Sat, 18 Feb 2017, Chuck Guzis wrote:
I'm looking at what I suspect is a labeled Harris VOS (Vulcan) tape.
Is it the case that the Harris minis are incapable of writing tape
records that aren't a multiple of 3 bytes in length? The reason I ask
is that the VOL HDR, etc. records all seem to be 8
I love the wisdom of Allison's remark, that
what some of us still see as "recent current events"
is "ancient history" for the youngsters.
On Tue, 18 Jan 2022, Peter Coghlan via cctalk wrote:
I can only conclude you needed something to save the surface on one of these...
https://www.thisiswhyimbroke.com/floppy-disk-table/
I have a RAMAC platter.
(24" diameter; arguably FIRST hard disk, from 1958?; when they wouldn't
let Nikita K
I can only conclude you needed something to save the surface on one of
these...
https://www.thisiswhyimbroke.com/floppy-disk-table/
On Tue, 18 Jan 2022, Mike Katz via cctalk wrote:
I just love that table
Although the ad says "1.44 megabytes", it is a 720K.
The write enable notch is not o
What's the going price for a Cray round sofa/bench?
On Mon, 31 Jan 2022, Noel Chiappa via cctalk wrote:
Partitions may have appeared in DOS/Windows for much the same reason; with 32
KB clusters, FAT16 filesystems were limited to 2GB. I distinctly recall
having to use partitions when I bought a 13GB hard drive for my Windows 95
machine (FAT32 only
On Mon, 31 Jan 2022, Grant Taylor via cctalk wrote:
I think the same type of problem happened with the really old FAT-12 to
FAT-16 conversion.
Wasn't FAT-12 limited to something near 31 MB?
32 MebiBytes - 1
On Mon, 31 Jan 2022, Grant Taylor via cctalk wrote:
I think the same type of problem happened with the really old FAT-12 to
FAT-16 conversion.
Wasn't FAT-12 limited to something near 31 MB?
On Mon, 31 Jan 2022, Fred Cisin via cctalk wrote:
32 MebiBytes - 1
On Mon, 31 Jan 2022, geneb
ences I see are: (1) layering: the
partition is below the file system. (2) partitions are originally entirely
static (set at creation and never changed) and even later on changed only
rarely and typically with substantial technical difficulty.
paul
--
Fred Cisin
On Tue, 1 Feb 2022, Peter Corlett via cctalk wrote:
FAT's *file* size limitation is indeed due to a 32 bit field. The ISO 9660
standard offers an "interesting" solution to that, namely having multiple
directory entries for the same filename. So if you want to store files
larger than 4GiB on a CD-
Many/most? early drives were CAV (Constant Angeular Velocity) with the
same amount of data on each track.
Therefore, the data transfer rate, once on the right track, was the same.
BUT, the bits were physically closer to each other on the inner (higher
numbered) tracks, and the error rate was s
Covering more distance in the same time means increased speed to me!
On Tue, 1 Feb 2022, Jon Elson via cctalk wrote:
Clearly, on a disk, the outer tracks ARE moving faster, in terms of linear
velocity.
If the data is written at a constant data transfer rate, and the motion of
the disk is the
On Mon, 21 Feb 2022, Chris Zach via cctalk wrote:
I think installing 30 floppy disks would be an exercise in insanity:
No arguments there.
That
would probably wear down an RX50 drive to the nubbins.
Are RX50 drives less robust than what was used to install Windoze 95?
DD 5.25" disks are about 300 Oersted.
HD 5.25" disks are about 600 Oersted.
If you use HD disks to write DD content, the data fades away real fast.
However, on 3.5" disks, the difference is more like 600 Oersted VS 750
Oersted, and you may get away with using the wrong disk.
360K disks are te
From the FDC point of view, which doesn't have optical view of the drive
and media, the 80 track DD 5.25" looks similar to a "720K 3.5" drive.
(80 tracks, 9 sectors per track, 300 RPM, 250K data transgfer rate)
On SOME PCs, setting the CMOS floppy setting to "720K" may take care of
it.
On Tu
A little over 40 years ago, while we were still using TRS80's at the
college, the purchasing agent was sleeping with a vendor, and got us
RoyType HD diskettes, instead of what we asked for (Verbatim Datalife).
When used in the TRS80s, it would format and write without showing errors,
but minutes
On Tue, 22 Feb 2022, Bill Gunshannon via cctalk wrote:
Hmmm.. I wonder if I could do any of this with my OS9 system
running on a Tandy COCO? Lot's of ability to fudge with disk
formats and you can't find a controller much older. :-)
Makes me wonder about the other old TRS80's. All handle 5.25
-trakcess-1.95.pdf
Harv Pennington's first book (before he got carried away) was "TRS80 Disk
And Other Mysteries". Later on, he even got involved in marketing
a port of Michael Shrayer's "Electric Pencil" to PC!
On Tue, 22 Feb 2022, Fred Cisin via cctalk wrote:
To test the false "Write-protect" error, try:
Put a BLANK floppy in the drive, and ask Windoze to FORMAT it.
For simplicity, choose the "360K" or "720K" format.
See what if any errors that generates.
If no errors (or certain specific other ones), then we can assume that the
problem is not with t
I am not in the USA, but I am should be able to look for other screwdrivers
here in the UK. I already have one quite big one, but I think it is still
way too small for this purpose.
How big is it?
For ridiculously large flat-blade screws, look at "drag link socket"s.
For just getting extreme a
On Fri, 11 Mar 2022, Terry Cox-Joseph via cctalk wrote:
Dear Classic Computers Members,I am looking for someone who had an
operating floppy disk drive that can read old 5-1/4" floppy disks from
the 1980s.I may also need someone to read hard, 3" floppies. The disks
can be mailed and the info can
On Fri, 11 Mar 2022, Chuck Guzis via cctalk wrote:
I could do it, but I'm a little squeezed for time and energy right now.
Spending my mornings under the LINAC.
Yikes!
The word "under" means that you are not doing atomic physics experiments.
Very sorry to hear it.
I got more details from the
I got more details from the guy with the disks. They are apparently
"360K" PC floppies with XYWRITE files, and he wants to load the file
contents into a "modern"? word processor. So hopefully, somebody can help
him, with a simple COPY *.*, and I think that he now understands that he
might als
tands
that he might also need to get back a copy of XYWRITE to turn the
file content into something usable.
It was mentioned that he would pay someone to do this. Why not just
tell him to buy a $20 USB Floppy from Amazon and copy them himself?
On Fri, Mar 11, 2022 at 7:25 PM Fred Cisin via
There are no 5.25" USB floppies. Well, not 100% true (there are values
in the identifier strings that tell you it's a 1.2MB floppy vs a 1.44MB
floppy), but as a practical matter, you can't find them. I've looked and
gave up... That's how I wound up with my kyroflux + TEAC drive (though a
greasewea
On Sun, 13 Mar 2022, ED SHARPE via cctalk wrote:
A person that had this ge computer would know. Anyway this listserv
still rejects images still ?
Sent from the all new AOL app for Android
Yes. They screw up the teletype.
If you can switch to a non-proportional font (not easy with AOHell), you
can make "ASCII Art". It's not just for soft-core porn.
On Sun, 13 Mar 2022, ED SHARPE via cctalk wrote:
A person that had this ge computer would know. Anyway this listserv still
rejects images still ?
Sent from th
more like this:
(Who needs VGA, if you have a non-proportional font?)
(Text art, with a proportional font, is psychedelic)
__
|--|--| __ __ __ | ___ | () |
| 64X4 | 64X4 | || | | | |
On Sun, 13 Mar 2022, W2HX wrote:
Here is some Baudot Art. Hot off the model 28
On Tue, 15 Mar 2022, Christian Corti via cctalk wrote:
Where is "here"?
Christian
He had a 2.5M attachment of a photograph of the 28 printing it
On Tue, 15 Mar 2022, W2HX wrote:
Btw I have since resent the message with a link to the .jpg but I don't think
it has come through. I suspect both images and links may be verboten on this
list. Ironic considering the advanced technical proclivities of the membership!
73 Eugene W2HX
Subscribe to
On Wed, 16 Mar 2022, Diedrich, Bryce via cctech wrote:
Just got a Commodore Vic-20. What is the safest way to power it off when I
am done using it?
On Wed, 16 Mar 2022, geneb via cctech wrote:
Turn it off.
Then disconnect the power cord from the wall.
Clean the machine
Place it in a sealed c
On Wed, 16 Mar 2022, Diedrich, Bryce via cctech wrote:
Just got a Commodore Vic-20. What is the safest way to power it off when I
am done using it?
On Wed, 16 Mar 2022, Will Cooke via cctalk wrote:
If you really ARE done using it, you can mail it to me :-)
And, THAT is the right answer.
It is true that on any computers with disk drives, you should wait until
the disk writing activity is completely done before shutting the machine
off. In some cases, that is not just waiting for the drive light to stop
flashing, but also waiting for any "delayed writes" that the operating
syst
to front panel keys. However, nothing is emitted onto 232. The D25 - D-9
transition has all the RTS/CTS and DSR/DTR/DCD lines knitted appropriately
and indicating 'correctly' on blinkenlites.
I don't know anything about that specific setup, nor anaything aabout your
personal expertise.
When
There's a 2K hole in the Model I memory map above the ROM
On Tue, 12 Apr 2022, Yeechang Lee via cctech wrote:
Is this the hole that causes stock Model I to not run CP/M?
NO.
The problem with CP/M on TRS80 is that CP/M expects RAM from location 0 on
up.
Location 0 - FFh are used as a data stru
On Wed, 13 Apr 2022, shad via cctech wrote:
The main board should include a large enough array of bidirectional
transceivers, possibly with variable voltage, to support as much
interfaces as possible, namely at least Shugart floppy, ST506 MFM/RLL,
ESDI, SMD, IDE, SCSI1, DEC DSSI, DEC RX01/0
. . . and, if there is agreement to standardize the connection system for
the "personality modules", then some of the other storage systems could be
implemented, particularly including some of the tape systemmes.
'course, it would be a lot more fun, instead of the 62 pin card edge, to
go wit
/02, DG6030, and so on, to give a starting point.
On Apr 13, 2022, at 5:27 PM, Fred Cisin via cctech
wrote:
Hmmm. rather than re-inventing the wheel, as we usually do, . . .
. . .
It says "IBM", "5160" on the back panel label, although there were
plenty of generic second s
On Wed, 13 Apr 2022, Paul Koning wrote:
Indeed. Though even that is hard for the more exotic formats, if
original controllers are unavailable. How would you read, for example,
an IBM 1620 or CDC 6600 disk pack, given that the machine is hard to
find and those that exists may not have the righ
It certainly seems that it would be THEORETICALLY POSSIBLE, with an
extreme budget, to build a high resolution device similar to the 3M
Magnetic Tape viewer, . . .
https://blog.adafruit.com/2020/03/01/the-magnetic-tape-viewer-see-the-sound-on-a-tape/
On Thu, 14 Apr 2022, John Foust via cctalk
On Thu, 14 Apr 2022, John Foust via cctalk wrote:
Magnetic visualizers also discussed here:
http://qicreader.blogspot.com/p/track-visualization.html
Thank you.
That is what I was looking for.
It doesn't imply current existence of anything already coupled with a
digital camera, nor particularl
On Thu, 14 Apr 2022, Tom Gardner via cctalk wrote:
This was the approach IBM used in it's first RAMAC RAID where I think
they had to buffer a whole cylinder but that was many generations ago
(my copy of the specs may not be exact):
Buffering a whole cylinder, or a whole surface, of the RAMAC wa
Once the chip is out, for cleaning out the holes, I used a spring loaded
solder sucker on one side of the board, with soldering iron on the other
side.
also, solder wick
sometimes a wooden toothpick
in extreme cases, a small drill bit turned by hand in a pin vise (NOT
chucked up in a powered 1/
This was the approach IBM used in it's first RAMAC RAID where I think they had
to buffer a whole cylinder but that was many generations ago
(my copy of the specs may not be exact):
Buffering a whole cylinder, or a whole surface, of the RAMAC was no big deal.
One hundred surfaces (52 platters,
ONCE MORE, I APOLOGIZE.
(details bottom posted)
This was the approach IBM used in it's first RAMAC RAID where I think
they had to buffer a whole cylinder but that was many generations ago
(my copy of the specs may not be exact):
Buffering a whole cylinder, or a whole surface, of the RAMAC was n
There's a 2K hole in the Model I memory map above the ROM
Is this the hole that causes stock Model I to not run CP/M?
NO.
The problem with CP/M on TRS80 is that CP/M expects RAM from location 0 on
up.
On Tue, 19 Apr 2022, Charles Dickman wrote:
When I was a freshman at Purdue, I lugged my M
On Wed, 20 Apr 2022, Tom Gardner via cctalk wrote:
Likewise, I don't know it for certain, but I am pretty sure that it is
true that virtually all controllers switch heads sequentially when
transferring blocks beyond the end of the track,
Are you implying that data/file that is more than one tr
On Thu, 21 Apr 2022, Mike Katz via cctalk wrote:
Intel has never understood interrupts or good cpu architecture.
Look at the segment:offset architecture of the 8086 and of course it's single
interrupt (without the separate interrupt controller chip) vs the 68000
somewhat orthogonal 32 bit archi
On Thu, 21 Apr 2022, Charles Dickman via cctalk wrote:
Were there ever any floppy controllers for the (parallel) PCI bus? I
Googled a bunch and haven't found any.
I am trying to outfit a computer for the long haul that can run a bunch of
older software in virtual machines and do things like dupli
Works fine. Good Condition.
On Fri, 22 Apr 2022, Lee Courtney via cctalk wrote:
Doesn't say whether it includes power cord or not?
😸
Wouldn't matter. There aren't any Windows 10 drivers for its PCI card.
On Fri, 22 Apr 2022, Maciej W. Rozycki via cctalk wrote:
You can of course build a PCI FDD interface around the NEC uPD765 or an
equivalent controller, but you can't make it compatible with existing PC
software, because too much PC specifics has been embedded there around the
8237 DMA controller
On Fri, 22 Apr 2022, Bill Gunshannon via cctalk wrote:
As another person with a desire to be able to read/write/create
disks of different sizes and formats I have found this interesting.
So the question, then
How hard would it be to make a floppy disk interface using an Arduino
or even Rasber
Isn't that what Greaseweasel and similar do? I have a kyroflux that I use
to read floppies on my macbook. It can write as well and understands a ton
of formats. Greaseweasel is more available and supported (I got my
kyroflux
before things went south, so wouldn't recommend others get one these
d
On Sat, 23 Apr 2022, Bill Gunshannon via cctalk wrote:
Your right about all the available options. Somewhere around here I
have a couple of P112 SBC's. I wonder what the floppy controller in
that can do? I am pretty sure it claimed compatibility with CP/M 8"
disks. If so it can probably handl
On Sat, 23 Apr 2022, Craig Ruff via cctech wrote:
The P112's floppy controller is the one in the SMSC FDC37C665IR SuperIO
chip. The data sheet states it is a 2.88 MB "Licensed CMOS 765B Floppy
Disk Controller" and claims 100% IBM compatibility (for what that's
worth).
2.8M (it is not "2.88" u
On Tue, 26 Apr 2022, Chuck Guzis via cctalk wrote:
I recall getting a job back from keypunch with a note attached: "I
wasn't sure if you meant zero or oh (I always slashed my zeroes; the
keypunch form specifically called that out), so I did some of both".
Card deck into trash; go find a keypunch
On Tue, 26 Apr 2022, Chuck Guzis wrote:
Whole operating systems got written at night, I suspect.
I suspect that Windoze was written during business hours.
On Tue, 26 Apr 2022, Gavin Scott wrote:
Forgive me, but is this not why we had a place on the coding forms
explicitly for this purpose, as seen in:
https://upload.wikimedia.org/wikipedia/commons/1/18/FortranCodingForm.png
where "Punching Instructions" consisted of example pairs of a writer's
hand
I remember about 30 years ago, a registration card for a Microsoft product
had specific forms that they wanted for certain letters, for the sake of
a slightly inadequate handwriting recognition program. Among those was
"ticked letter O". A round 'O", with an extra mark on the upper right.
Lik
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