12" Floppy Disks

[tony duell]

> 
> I've been contacted by a teacher who's looking for any information about
> 12" floppies. Am I imagining that they really existed? I'm sure I've seen
> one or seen adverts for them, maybe at Bletchley Park. Others he's
> contacted think he's getting confused with 12" laser discs but I'm not so
> sure.

First I've heard of them :-)

I wonder if he's thinking of the 14" hard disk cartridges, perhaps the front loading
ones used in things like the RK05 drive.

-tony