Subj : MS-DOS Emulation -use
To   : Ky Moffet
From : Barry Martin
Date : Mon Jul 27 2020 09:03:00


Hi Ky!

 > Back in the old days I had a Windows and if
 > I started DOS then opened Windows it worked fine but if I configured it
 > to start at Windows and shell to DOS would in short time lock up.  Had
 > others check and they didn't find a problem with the hardware nor
 > software.  (Guess that was the start of my annoyance with Windows.)
 KM> Huh. That's very strange, but I'd guess when it went direct to
 KM> Windows, the underlying DOS memory manager was not getting loaded
 KM> correctly. Or the config options were different; as I vaguely
 KM> recall Win3.1 used different config options for its DOS shell.

Something like that.  I did have at least one person take a look and 
everything appeared correct.  Oh well, just loaded DOS first, then 
Windows when I needed it.


 KM> I recall having some rather strange config.sys and autoexec.bat
 KM> bits to deal with something like this, then again I was using
 KM> DRDOS underneath, and while it had more functions, it also had
 KM> more cranks compared to MSDOS.
 
The 'we have good news and we have bad news' thing.  I think I had tried
DRDOS but decided it would be best for me to stick with the 'mainstream'
stuff packed with the computers we were selling at the store and I could
(and did) provide some customer support.


 > As far as running Windows on an RPi, I think the article suggested a
 > Raspberry Pi 4 -- faster than the earlier versions so a plus there.
 > I'd probably go with the 8 GB version over the 4 -- for this application
 > saving a few dollars on the less expensive option isn't worth it.  OTOH
 > one of the nice things about the Pi's is one can remove the SD card,
 > insert another and it's a 'different' computer!  Easy to see if one
 > likes something, is fine with the response or an upgrade is worthwhile.
 KM> Yeah, that way you're also flexible for other projects.
 
Plus relatively easy to have a back up: the newer OS allow copying of 
the entire SD card as opposed to just the data partition (maybe was also
part of the OS partiion, I don't recall).  Having a clone of the card is
nice!

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