Sorry,
I didn't notice that John was explicitly talking only about
"high density" 3.5" diskettes.
That reduces the number substantially, to:
3.30 3.31
4.00 4.01
5.00
6.00 6.10
6.20 6.21 6.22
7.00
7.10
only one of which (3.30) is limited to <32M hard drive,
but all but one (7.10) are limited to 2G hard drive
When I said "you" in talking about learning DEBUG, I was NOT
referring to John; I meant any beginner who would try to do
those steps without understanding them.