8 Jun
2016
8 Jun
'16
12:24 p.m.
Those were
machines with 3.5" 720K as the only internal drives.
Possibility of other kinds of drives externally. But, 3.5" 720K
drives became available at that time (PC-DOS 3.20) as external drives
and/or as internal for 5150/5160/5170.
The first (intimate) contact I had with 3.5 diskette drives