I recall seeing an IBM PC compatible or similar system many years ago in a business environment that had a distinctive boot error screen. The system showed a spinning floppy disk on the screen, prompting the user (if I recall correctly) to insert a boot disk, and restarted itself every few minutes or so in this state. The graphic was relatively crude: it was monochrome and drawn in text mode. It's this spinning floppy graphic that caught my eye but sadly, I was never able to take a closer look at the system. I believe the system took 5.25" floppies, and was not recent enough to use 3.5" disks.
Any idea what this system was?