I haven’t done a blog retrospective in a while. Today’s post from exactly decade ago discussed formatting 720K floppies in Windows XP:
Helping my dad today with some old disks, we realised that in XP Microsoft removed the 720K option from the GUI format tool, and the
/F:720flag is gone from
FORMATon the command line! Fortunately if you specify the tracks and sectors manually it recognises the 720K disk and formats it.
FORMAT A: /T:80 /N:9
I don’t have any machines with floppy drives running Vista or 7, but I assume this still works in later versions.
I can say now that this was for a legacy SCADA system that didn’t support high density floppy disks. It was old for 2010, and even for 2000 now that I think about it. I wonder if it’s still running at that plant in Singapore today? It’d likely be more reliable than stuff we have now.
I still use 720K today for my DOS machines, not for any particular reason other than I had a bunch, and they more than fit all my MS-DOS 3.x era stuff.