24 Jun
2019
24 Jun
'19
6:53 a.m.
Both the AT&T and the USB cable will be "DTE" (Data Terminal Equipment -
ala terminal) vs. "DCE" (Data Communication Equipment - ala modem) -
you'll need a null-modem cable to correct that mismatch. Basically, if
not using hardware handshake, swap pin 2 and 3. ;)
On 6/23/2019 8:35 PM, Mary Ann Horton Gmail wrote:
These are great ideas. I can easily get USB-to-serial
(and even
USB-to-parallel) cables online that will fit the PC/XT compatible
DB-25 plugs on the back of the PC. I'll have to figure out how to
fiddle with the baud rates and such.
I solved the GRF file puzzle. It turns out it's a text file - a
Usenet article. And the same article is in the Google archive.
https://groups.google.com/forum/#!search/group$3Anet.news.map$20philabs!dal…
There is a cutoff notice at the end, both on the Usenet article and on
the floppy file, but that may be intentional. I'll have some fiddling
to do.
Mary Ann
On 6/23/19 5:02 PM, Grant Taylor via TUHS wrote:
On 6/23/19 5:52 PM, Arthur Krewat wrote:
Does the AT&T have a serial port?
Kermit would be the way I'd go, but since you say you have nothing
with serial ports, that could be a problem. A cheap usb-to-serial
port might be in order. Then you can run Kermit 95 on a Windows 7 or
earlier machine. (might work on later OS's too, but it's not supported)
The flip side is how to get Kermit onto the DOS machine.
Does Kermit have an option like INTERLNK & INTERSVR have where you
can run a "copy COM1 INTERxxx.EXE" to push the software across the
serial port?
I wonder what the requirements are for INTERLNK & INTERSVR. I don't
know if they would go back to (MS-)DOS 2.11 or not.
I used a floppy recovery service a while back to
read my old
Commodore 64/PET disks - he was relatively inexpensive, and very
responsive.
http://retrofloppy.com/
If the machine is able to read the files without error, then a
recovery service might not be necessary. IMHO it's a question of
getting one or more copies onto something else so that the existing
floppy isn't the only copy.