I went to this school – only for one year (1993) – where I became friends with a boy named "Mark Williams". And he had a DOS floppy disk from the Mark Williams

I went to this school – only for one year (1993) – where I became friends with a boy named "Mark Williams". And he had a DOS floppy disk from the Mark Williams Company entitled "Mark Williams Utilities". We tried running some of the programs on it, and whatever they actually did went over both our heads, but he was just amused to have come across programs that had his name on them. In hindsight, I'm guessing it was probably the utilities that came with their DOS C compiler, but I don't really know.