8" Floppies

[Al Kossow]

Eric Smith wrote:

> Memorex introduced the first commercially-sold 8" read/write floppy 
> drive, the 650, and later a 651 with faster seek times.  These were 
> hard-sectored and had the sector/index hole near the outer edge, and 
> spun at 375 RPM.  I don't know whether the diskettes used by the Memorex 
> 65x drives were interchangeable with Minnow disks, but my box of Memorex 
> disks were presumably for the Memorex 65x drive.  I've heard that the 
> 65x drive was used in some early word processing systems.
> 

They were also sold by AED in the 2500 floppy disc subsystem.

Burroughs also used this style floppy. There is a notch in the outer case
on those.