Now let's start the exploration in MS-DOS. You can go to one of the sections listed below. If you don't feel easy with MS-DOS, you can go to try something interesting in MS-DOS.
Firstly, let's start from MS-DOS internal commands.
Secondly, there are several different sections talking about MS-DOS:
There is a usual way of getting experiences of a new MS-DOS command.
I accumulated some experiences during reinstallations of Windows.