This is the first PC machine I had to look after at work:
Wordplex wordprocessor with two 5.25" floppy drives.
Pah!
First thing I looked after was a HP85 with a 5" screen and a tape drive... If you had thousands you could buy a mass storage interface (HP-IB) for it and add a dual 8" drive.
Latyer they introduced the 89201M dual 5¼" floppy drive and shortly after the 9135A which had a 5Mbyte Wincheter and a 5¼" floppy. The Winchester had to be formatted as four 1.2Mbyte drives to emulate four 8" floppies.
How sad that I can remember all that but not what I did yesterday...