@nova your AMIGA post reminded me of my first computer, about 1987 or 1988. My folks went to Sears, I think?
It was a VENDEX 888-XT with a whopping 512k of RAM, 2 5.25" floppy drives, NO hard drive, and it ran exclusively on the proprietary VENDEX operating system, which required the switching out of two floppies to fully load.