On Tue, Aug 18, 2015 at 1:45 PM, Fred Cisin <ci...@xenosoft.com> wrote:
> On Mon, 17 Aug 2015, drlegendre . wrote: > >> Terry & all, >> To be clear - SD on a "360K" floppy is 180K? Yes? >> > > NO. > Osborne SD was also single sided. > 10 256 byte sectors per track. 100K. > > > "360K" was 9 512 byte sectors, with TWO sides used. Hmm. I don't have the machine in front of me to check (I'm at work), but I pretty sure my Osborne 1A drives are single sided not double sided. But I have the double density modification so yes, around 180-200k per disk I imagine. Using the PC and Imagedisk I could easy write DD single-sided disks in a double sided (360k PC) drive though. Terry (Tez)