and ncurses I believe expect a POSIX subsystem to operate.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 10/24/2024 11:14 AM, Wayne S via cctalk wrote:
I thought it was a good article too.
To add to the chorus, I concur. I think the writer did an excellent job
capturing some of the cool pieces of Ward's impact on the tech world and
made it relatable to the general public. We should encourage
On 10/24/2024 5:47 PM, Joseph S. Barrera III via cctalk wrote:
Nowadays, of course, it would be a Chevrolet Suburban full of 1 TB
micro-SDXC cards.
Micro-SD volume[1]: 21.5 mm × 20 mm × 1.4 mm = 0.000602 liters
Suburban cargo volume[2]: 144.7 cu ft = 4097.4477 liters
# TB = # cards = 4097.4477
On 7/31/2024 7:25 AM, Liam Proven via cctalk wrote:
On Wed, 31 Jul 2024 at 06:14, Jim Brain via cctalk
wrote:
In the interest of facts, I don't think this is correct.
Windows NT 3.1 utilized the Windows 3.1 UI look and feel
https://en.wikipedia.org/wiki/Windows_NT_3.1
Windows N
On 7/30/2024 6:58 AM, cz via cctalk wrote:
But Windows 2000 was a re-architected version of NT that people hated
because of the GUI. So they dusted up the GUI with Windows 98's stuff
and released it as XP. Rest was history
In the interest of facts, I don't think this is correct.
Windows N
es of many items that hold more than a passing interest.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
I actually enjoy reading physical issues, so I keep them when I come
across them. Most of my paper mag collection is mine from BITD, but
I've gathered ones from other platforms and issues before I subscribed
to a periodical (Compute!, for instance).
If I need to research something, though, I
ines. It appears classic cars (well kept and restored, of course)
continue to appreciate in value, but I am not sure the same will apply
to computing technology.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 6/27/2024 9:36 AM, Bill Gunshannon via cctalk wrote:
Bill, I empathize with your comments.
As you note, to successfully realize financial value from these items,
one needs to be willing to put them into the various marketplaces,
potential customers need to be comfortable with you as a selle
On 6/26/2024 8:07 PM, W2HX via cctalk wrote:
None of our survivors will give a rats-arse about getting even a nickel for
this stuff. All they will want is for it to be gone. They would probably even
pay to have it carted away. So I don't think any economic analysis of how to
dispose of a co
27;ve been
guilty of this, but it's still true.
Games are always a good draw, even if that seems like cheating.
Now, off to finish packing.
Brad
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 4/20/2024 1:16 PM, Wayne S wrote:
Who still uses the Z80 line for new projects? Wouldn’t it be easier and cheaper
to just use an Arduino or Raspberry Pi?
Given the list you're posting on... :-)
Jim
designs on there? (I admit I have not looked at the
other cores, so perhaps they can't be coaxed to act like just a Z80,
just wondering).
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 3/31/2024 3:03 PM, Adrian Godwin via cctalk wrote:
Has anyone had problems with LCSC ?
I've not, but I have used https://www.utsource.net/ with good luck.
Jim
rom Digikey
or Mouser and will consider only passives from local sources. Of course,
that means I pay a US outbound tariff on the active parts and then an
inbound tariff on the completed products, thus paying tariff costs twice.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/6/2024 11:30 AM, Michael Thompson via cctalk wrote:
You could contact https://www.wmbt.org/ to see if they have a Bosch or Sony DEC
to read the tapes.
I'd encourage folks to contact the OP of the article. I just forwarded
it to the list for additional exposure.
jim
On 1/6/2024 5:55 PM, Kurt Geisel via cctalk wrote:
FWIW, there is one clearly pictured in their 2023 tour photo album
(https://app.photobucket.com/u/WMBT/a/095880e5-c73f-4b8c-ae16-a833b765a209/p/caee04d7-c7e4-41a5-98eb-35ce31bb77e5),
followed by pictures of D-2, D-3, D-5, etc.
I'd encourage f
https://entertainment.slashdot.org/story/23/12/30/0151241/documentarians-secure-original-reboot-master-tapes-but-need-help-to-play-them
--
Jim Brain
br...@jbrain.com
www.jbrain.com
st this is a start.
bill
I know Discord is held in contempt in these parts, but
https://discord.gg/pRPdatRA4Z
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
rest.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
loper reminded me so much of the "Mel"
of Internet Folklore fame.
/me still has his copy of OS/2 v3 and Warp sitting here.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
of use anymore, but it fires right
up when needed.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 5/18/2023 2:08 PM, Paul Koning via cctalk wrote:
As for loading in/loading out files from images, there’s likely at
least something out there you can make use of. Even if there’s no
host OS native software for writing directly to images, there’s
almost certainly an emulator, which would wo
On 5/16/2023 4:43 PM, dave.g4...@gmail.com wrote:
Jim,
I would ask on here:-
https://groups.google.com/d/forum/mfm-discuss
to see if any one has one of these
https://www.pdp8online.com/mfm/mfm.shtml
which will image an MFM disk so you are not re-reading and probably damaging
your original, a
be willing to
help with this.
De
David has already connected with me, and I am grateful to send the unit
to him to see if he can retrieve anything. And yes, once the data is
off the drive, creating a decoder should not be overly difficult.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 5/16/2023 3:54 PM, Mike Katz wrote:
I'm sorry but I am not familiar with any CoCo OS hard disk formats.
All valuable information, but I am not concerned about the FS format.
ONce the data can be retrieved from the platters, either I or others can
write some code or create a way to view th
On 5/16/2023 3:00 PM, Kenneth Gober wrote:
On Mon, May 15, 2023 at 11:21 PM Jim Brain via cctalk
wrote:
At the most recent CoCoFEST!, I brought home the old Glenside Club
Computer Hard Drive. The mechanism is an ST-251, and I was
wondering if
someone on-list would be willing
destroyed to get the data, or if attempting to read the data
destroys the drive, I will not hold anyone responsible. I don't even
need the drive back, just data if it is recoverable.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 3/27/2023 1:07 PM, Mike Stein via cctalk wrote:
68764s and 2532s are still available if you look hard enough; if you can't
find any, with a couple of jumpers the unusual TMS2564 can replace both of
them
As can a 23XX Adapter (shameless plug, but gerbers are available for
anyone to roll the
On 3/15/2023 10:05 AM, Ethan O'Toole via cctalk wrote:
If you posted your design as Open Source, someone else producing it
isn't a knockoff, it's the system working as intended.
-- Chris
I remember a talk by LadyADA of Adafruit at HOPE about starting a
company making open source hardware and
after you are no longer interested in the thing is the only way to
accomplish my goal, at the expense of people who'd like to peruse the
internals for personal value or fix one.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
h 2 function generators/3 333 MHz
LA cards (204 channels)/100MHz DSO, and sold the extra 16500 frame with
2 100MHz+ cards onto to another community member. Maybe Sigrok and a
few of the less expensive 32/34 channel options is a better suggestion
for the lower end option.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 3/14/2023 4:16 PM, Jonathan Chapman wrote:
There are other things that we've chosen not to run for the same basic
reason, and others that won't get open sourced.
I will admit I am trending in that direction. I put things as FLOSS
because I wanted the designs to outlast my involvement with
m, to support their awesome GUI, and then drop by eBay and
grab 2 or 4 of the knockoffs to put in your toolbox or travel debugging
rucksack.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
ch I love. I have 3 333MHz LA
boards in it 68 channels per board, 204 channels overall. It's not
quite as trivial to use as the Saleae units, but it does offer remote
access via X or VNC.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
s
project instead of trying to liberate one of my drives from a working
machine.
I see the links on eBay (a few untested HLS variants and a working non
HLS one available), but would prefer a working HLS B.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
lued onto mylar will not exist much
longer at quality levels that companies can risk.
Then, I'm hoping someone with deeper pockets than I starts production :-)
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
anyone.
Interesting thoughts there.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
get it telnet accessible, tcpser (shameless plug) can be used
to expose it as a "Hayes(tm)" modem-reachable service.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
b/bitbucket/gitlab repo and a simple git push
and all your local data/files under control are magically on the web for
sharing, if that's the goal.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
rt) it was part of a
plan for a school network. Tandy offered a similar setup for schools
for the Model 1/3/4 systems, where the "host" could send programs, and
the clients would load from the common host system.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
.
I didn't. It was in the email this was a reply to:
On 1/30/2023 11:34 AM, Jim Brain via cctalk wrote:
Lots of systems had dedicated cassette ports, but yes, CoCo has a
dedicated cassette port, as does all the 8 bit CBM machines, I think
the Model 1/3/4 also, and doesn't the Apple
eeds audio tones, not RS232 levels.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/30/2023 6:32 AM, Chris via cctalk wrote:
I cam't help you. But let me get this strait. 2 cocos connected with ... a
null modem cable? can send info to one another in basic? What is the
corresponding send commamd? Or was this simply intended to accept data from a
cassette recorder? It st
Over at the CoCo Mailing List, there's a archeological discussion about
the DLOAD BASIC command in older versions of the Color Computer BASIC.
It uses the serial port (and no doubt was designed for computer sharing
in classrooms or similar), but the questions are around how it was
designed and
fail first.
Thanks for the chuckle. I admit I created this issue, I copied the name
from the previous comment into the subject line under an assumption of
correctness (probably not a defensible argument, but it's the one I'm
sticking with)
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/24/2023 12:23 PM, Tony Duell wrote:
On Tue, Jan 24, 2023 at 6:16 PM Jim Brain via cctalk
wrote:
On 1/24/2023 12:12 PM, Tony Duell via cctalk wrote:
I've skimmed the thread about making images of floppy disks. I want to
do the reverse.
Greaseweazle will do this. Use the same HW set
On 1/24/2023 12:12 PM, Tony Duell via cctalk wrote:
I've skimmed the thread about making images of floppy disks. I want to
do the reverse.
Greaseweazle will do this. Use the same HW setup as for imaging, but
instruct the GW software to write an image to physical disk.
Jim
--
Jim Bra
On 1/23/2023 9:04 PM, Sellam Abraham via cctalk wrote:
On Mon, Jan 23, 2023 at 6:17 PM Jim Brain via cctalk
wrote:
On 1/23/2023 7:58 PM, Chris via cctalk wrote:
That brings back memories (pun maybe intended). In the late 1980s, you
could buy 5.25 DSDD in bulk for $USD0.29/disk, but you had
r a bit of profit.
Tons of them here and still in use.
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/23/2023 1:21 PM, Mike Katz wrote:
On 1/23/2023 12:11 PM, Jim Brain via cctalk wrote:
On 1/23/2023 11:53 AM, Mike Katz via cctalk wrote:
The 6883 SAM was the "glue" that provided all of the timing and
address decoding for the entire system. To reduce flicker the 6847
and 68
On 1/23/2023 1:01 PM, Mike Begley wrote:
Right now, I'm going back and forth on an IMSAI I am restoring. Part
of me wants to do as slavishly accurate a restoration as I can, but
the another part insists that there really is no such thing, really,
as the whole culture around S100 was about takin
On 1/23/2023 12:59 PM, Mike Stein via cctalk wrote:
Let's face it, most of us have trouble justifying the time and money we
spend for whatever reason on what is essentially useless obsolete junk to
anyone outside our community.
I "fell" into a situation that contains the trifecta of hobby
just
On 1/23/2023 11:53 AM, Mike Katz via cctalk wrote:
The 6883 SAM was the "glue" that provided all of the timing and
address decoding for the entire system. To reduce flicker the 6847
and 6809E memory accesses were alternate cycled. This means that they
used opposite edges of the Phase 1 cloc
more resolution, RGB
output, and more colors in those resolutions).
The 6809 runs OS9, so there's that.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/23/2023 10:17 AM, Chris Zach via cctalk wrote:
It's the classic "ship of Thesus" argument. And a 2,000 year old
debate is not going to be solved on this list.
Though the comments started with an absolute (replacing all drives with
Goteks), I assume many of us take a more pragmatic approac
27;s a
spammer, DENY!... Um, he sent it again, I guess not, let it through...:-)
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
using this
creature. Of course, there's the possibility that they're
unobtainium...
The older(?) USB97CFDC is still available ...
BAH! I just ordered the DC2 part! :-)
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
pment and bug
fixes are handles very quickly.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
teristics
of the drive head in use.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
firmware
or HxC...
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/20/2023 10:32 PM, Chuck Guzis via cctalk wrote:
On 1/20/23 16:25, Jim Brain via cctalk wrote:
I'm game to try. I see them nominally listed for sale, so I asked for a
quote for 10. We'll see if they are really available or not.
I've also seen them being offered on Al
On 1/20/2023 12:31 AM, Tony Jones via cctalk wrote:
On Thu, Jan 19, 2023, 10:18 PM Jim Brain via cctalk
wrote:
cheaper than KryoFLux (I believe it was designed as a rebuttal for the
high priced and "walled garden" nature of KryoFlux) or other related
projects like DiscFer
7;m a bit surprised that nobody's come up with a design using this
creature. Of course, there's the possibility that they're unobtainium...
--Chuck
I'm game to try. I see them nominally listed for sale, so I asked for a
quote for 10. We'll see if they are really availab
quot; or 8".
Likewise, Tandy Model 100 TPDD system disks are hard to make if you
don't already have a working TPDD system disk and can just make a copy
of it.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
o a DOS PC and grab the data. If there are issues,
we'll cross that bridge then.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
essing the actual floppy disk directly via the
USB interface (by emulating a regular USB floppy drive set of commands).
In reality, most people just do with Mike is suggesting. Grab the image
and then mount it as a virtual floppy and read the files/dirs as needed.
Jim
--
Jim Brain
br...@
feet from me.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 1/20/2023 3:48 AM, Christian Corti via cctalk wrote:
On Thu, 19 Jan 2023, Jim Brain wrote:
GW can do the same, but can also handle GCR encoded disks, the Amiga
disks noted above, and it might be able to do older Apple Mac 720K disks
All these Weazle thingies are just pulse timing samplers
floppies!
Since when does the Weazle need a floppy controller? It's an
autonomous device. And you *do* need a modern PC since it is attached
via USB.
Christian
You'll see below the response you quoted, the original responder meant
to say ImageDisk, not GW.
--
Jim Brain
br...@
On 1/19/2023 11:55 PM, Bill Degnan via cctalk wrote:
My catweasel 4, which I assume is more or less the same thing works fine in
a p3 pentium system. Is the hreaseweazle totally different?
It is. It's a small STM32-based uC that supports USB, and so can be
loaded with firmware to look like a
dual disk in a half height bay, and a 360kB head load Tec that I think I
bought from Chuck or at least someone on here (still working awesome,
BTW. OS is DOS 6.XX (whatever the newest was before v7 dual boot with
Ubuntu)
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
lder Apple Mac 720K disks
It's really not fair to compare ImageDisk to GW. ImageDisk is limited
to the configuration options and assumptions built into the FDC. GW has
no such restriction.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
ble anyway, treating it like a raw data
dump was probably the most expedient option to get to the end goal.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 12/27/2022 9:52 PM, Bill Degnan via cctalk wrote:
Which issue of Radio Electronics?
"Build the PT-68K"
Oct 1987 and Nov 1987 and Dec 1987 and Jan 1988 and Feb 1988 and Apr
1988 and May 1988 and Jun 1988 and Jul 1988 and Aug 1988 and Sept 1988
and Dec 1988 and Jan 1989
project to
complete at some point.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 12/22/2022 5:02 PM, Fred Cisin via cctalk wrote:
Another possible exception for banning XP:
I think that the OQO is interesting enough to call for inclusion.
It is a handheld, running XP. Screen slides partway off to reveal a
keyboard.
/me looks at his OQO 2, which still works (and has X
milar
uses. I've repacked quite a few NICD containing systems (Old HP
portable computer, camcorder, printers) with these new NiCDs, which all
are smaller, have more storage capacity, and are brand new.
If you decide to continue with NiCD and send cell dimensions, I'm happy
to see
On 12/21/2022 1:22 AM, Chris via cctalk wrote:
Ok for cbm and atari yes I'm familiar with most of those. I meant in general.
And specifically where would you go for server related discussions for pII
through socket 771?
I admit Pentium and newer forums are a bit harder to find, but some
st
On 12/21/2022 12:28 AM, Chris via cctalk wrote:
I keep hearing allusions to many forums. I think there are very few. I don't
do FB.
There are many web forums. Just for CBM, there's lemon 64, vcforum,
atariage (yes, CBM on atariage), denial, Everything 64, and 6502.org
handles a few things.
On 12/21/2022 12:03 AM, Chris via cctalk wrote:
Apples and Coco's and C64's would be the common sublist
As much as I enjoy these machines, I ask that we do not create yet
another list for them. There are many fine forums for all of these
machines. The occasional PET or VIC question in here s
Well, that's one nay for this topic. :-)
Jim
On 12/7/2022 12:06 PM, Sellam Abraham via cctalk wrote:
Just glue the contactor thingy back onto the motor spindle. Done.
Not done, as that's not the concern I am trying to address. I realize
my posting is not fully on topic, but if you are annoyed, just don't
respond and delete.
Jim
also prefer not to make any non removable changes to the unit. I
figured adding something to the terminals is easily removeable and thus
fair game.
It works as-is, but I can see people tapping the button too fast and
then my BIL deciding to replace the unit after annoying friends or
missing packages.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
way would require doing some invasive modification of
the unit, and it's not mine to modify. Though, I agree with other
comments, this S-R latch idea is a cool one.
Pat
--
Jim Brain
br...@jbrain.com
www.jbrain.com
, which would then
close the parallel switch and then open it a short time later, and then
the motor switch, which would still be closed, could signal the end of
the cycle.
But, I thought I'd ask around and see if a simpler option was available.
Jim
--
Jim Brain
br...@jbrai
On 10/21/2022 9:46 PM, Tom Hunter via cctalk wrote:
It would be better to stay on topic and avoid the hostile rhetoric of some
of the posts.
Um, I am. There were concerns about international shipping of this eBay
item, followed by some info on eBay international shipping, so I was
offering t
y customs forms is a
problem. The most vocal concerns I've heard are folks who buy outside
the US, have t pay customs, and then complain to me that I should have
shown the price of the item including customs and VAT and such costs. I
agree it'd be nice, but it's untenable at
I don't remember seeing this here, and not sure how many of you read his
articles, but:
https://spectrum.ieee.org/bob-lucky-obituary
--
Jim Brain
br...@jbrain.com
www.jbrain.com
could focus attention on other things.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
t the both the pricing is untenable for a device I
don't need to use but just wanted to research and I also don't want to prohibit
a known good device from being available if needed.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
tation that I have rarely seen elsewhere in
my travels. I do miss that.
I would say they are all old enough and obsolete enough to be considered "in scope" on here.
Dave
--
Jim Brain
br...@jbrain.com
www.jbrain.com
On 5/23/2021 2:02 AM, Jim Brain via cctalk wrote:
I, of course, came from UNIX and TCP/IP land, and 802.2 and all these
crazy protocols were just bizarre to me. I had bought the Comer books
right after college because I was trying to implement TCP/IP on my
Commodore 64 (got SLIP, TCP, and
On 5/23/2021 12:31 AM, Grant Taylor via cctalk wrote:
On 5/22/21 7:12 PM, Jim Brain via cctalk wrote:
I guess that's a selling point of TR, but I loathed it when
introduced to it after using Ethernet at UIUC. Having to learn
CPI-C, LU-2, LU-6.2, APPC, etc. and configure Communica
On 5/22/2021 7:50 PM, Lyle Bickley via cctalk wrote:
BTW: 16 Mbit Token Ring was much more reliable (especially in "noisy"
environments) and considerably faster with more consistent performance than 10
Mbit Ethernet. We won a number of large contracts when other network companies
used twisted pa
nnection to work, and now
the unit operates as designed. Still, I do not trust the socket.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
alker 54104 IC
Date: Tue, 9 Feb 2021 22:02:20 -0600
From: Jim Brain
To: General Discussion: On-Topic and Off-Topic Posts
I suspect the answer to question #1 is no, but thought I would ask.
1) Anyone happen to have a known working Digitalker 54104 IC they are
looking to trade for some
On 2/11/2021 6:02 PM, ED SHARPE via cctalk wrote:
Most challanging was to figure out to make it say naughty things... and once
you did how it almost caused havoc in AZ
Sounds like a story to add detail around...
But, I'm sad because no one either has one nor can help me test this
one. So,
and then "zero" and then "three" as one sends values
48,49,50,51 to the unit. I'm working to confirm the bit 1 on the cable
to the PC is not bad, but initial efforts point to it being the IC.
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
o I know all mech is
at least marginally OK (was booting from the mech with another logic board).
Jim
--
Jim Brain
br...@jbrain.com
www.jbrain.com
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