To the best of my recollection there never was any production FD greater than 8-inches, but u don't have to rely upon my fallible recollection since neither Porter's 1977 nor his 1982 Disk/Trends for FDDs mentions anything about larger media diameter. The 1977 version was the first one Jim published.
Tom -----Original Message----- From: Jules Richardson [mailto:jules.richardso...@gmail.com] Sent: Tuesday, September 15, 2015 12:03 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: 12" Floppy Disks On 09/15/2015 03:39 AM, Adrian Graham wrote: > Morning folks, > > 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. Ask him if he remembers whether the disk had a jacket or not, that might help narrow it down. Was it read-write or read-only? Was it definitely digital data or perhaps something analog-but-with-a-computer-application?
