Re: floppy capacity question

[KILPATRICK@Tank.CYBERphile.co.uk (Richard)]

In article <4s1klr$qg0@pith.uoregon.edu>, nparker@cie-2.uoregon.edu (Neil Parker) says:
>
>In article <4s199s$ffa@news.pacifier.com> jimbell@pacifier.com (jimbell)
>writes:
>>Tom Zuchowski <cd003508@interramp.com> wrote:
>>
>>>jimbell@pacifier.com (jimbell) wrote:
>>>>A question has been raised in another area about the capacity of an original
>>>>Apple II floppy.  I am aware that they went to 140 kilobytes, but I was under
>>>>the impression that they started out at 90 kilobytes.  Could somebody confirm or
>>>>deny this?  (copy me by email, please.)
>>
>>>DOS 3.0-3.2 used 13-sector tracks and had 113K capacity.  DOS 3.3 used 
>>>16-sector tracks and upped it to 140K.
>>
>>okay, what about before DOS 3.0?
>
>Before DOS 3.0, there was only cassette tape.  DOS 3.0 was Apple's first
>released DOS version.
>
>There are stories about an earlier "demonstration" DOS written in the last
>few frantic hours before the opening of the trade show where the Disk II
>was to be introduced, but I don't think it was ever made available to the
>public.
>
>               - Neil Parker

Okay Neil, my reply to Nathan was probably wrong in the US if you
are also aware of previous versions... (UK users definitely didn't see
DOS prior to 3.2). 

The demonstration dos was overwritten when they made a backup and got
the disks the wrong way round!

Does anybody have a picture (seriously) of a DOS 3.0, 3.1 or 3.2 disk?

I'm serious... I'll accept a disk if necessary.

Regards,
Richard