[northwest66]

Yep you got it. My first actual PCs (I don't count the Apricot PCs haha) were DOS 3.3, and I still remember the transition away from 33MB partitions although it's so long ago I can't remember if that came in with DOS 4.0 (abort abort!) or 5. I thought I was so cool having a PC with drives A B C D E F G H I.

[u801e]

I had a 486 PC with a 100 MB hard drive running Dos 5.x (can't recall the minor version). The hard drive was definitely a single partition.

[FranOntanaya]

Oh man, rich kids had a D: drive. The rest of us had to make do with A: and C: