Wordstar, Dbase III Plus and Lotus 1-2-3, along with MS-DOS were my gateway to the computer world. I suspect this must be the case for a lot of kids growing up around that time.
During highschool for the computing classes I had a high density floppy (whopping 1.4 MB!) with a custom installation of MS-DOS 3.3, TP, Q editor, TASM and maybe a few other utilities. Basically the minimum for a quick coding session on the computer lab.