It would have to be PC-DOS 2.10. Version 2.11 was MS-DOS i think. I have a
copy of 2.10 on the shelf with the book. I don't know anything about PC Jrs
though, with the exception of a thrift store here in Portland, OR that has a
monitor for one.
If you are interested in the SW contact me directly. I was actually looking
for DOS 1.XX to see if I might have it. I don't but I ran across the book set
marked 1.01 for the 3270 PC. I got excited but what was inside was PD-DOS 3.0.
Oh well, such is life. I have lots of versions of PC-DOS 3.0 & 3.1, and a
couple of MS-DOS 2.11 for other computers that I am interested in unloading.
Any interest out there.
Paxton
Whoagiii(a)aol.com