Microsoft ain't crazy, they are releasing something obsolete. Even MS-DOS 2.0 is limited compared to later versions. Support up to 16 MB or 32 MB FAT12 formatted hard disk drives depending on the formatting tool shipped by OEMs, and 5.25-inch, 180 KB and 360 KB floppy disks. Version 3.30 was the first version I ever used. Supports 3.5-inch, 1.44 MB floppy drives and diskettes, extended and logical partitions. I had an Epson Equity II PC-XT clone with a 40 MB hard drive and a CGA adapter. I later got a Hercules card and a compatible monitor in exchange for a moped that didn't run. Happy days. I then pirated MS-DOS 6.22 from a friend's machine by copying everything onto a stack of floppies over about a week.