Nope.  11.313 inches.

At 12:26 PM 7/12/2024, Schmitt, Michael wrote:
Content-Transfer-Encoding: base64They're 12" if you measure the sleeve /diagonally/

ð­Š

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Phil Smith III
Sent: Friday, July 12, 2024 12:19 PM
To: [email protected]
Subject: Re: Mainframe history - 12 inch floppiesBƒB”ÛÛYHÛÛÙÛ[™ÈÝYÙÙ\ÝÈ]\™H™X[ly were no 12" floppies. I suspect if you grew up with late "hard" floppies, 8" look enormous, are easily mistaken for 12"!

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Ed Jaffe
Sent: Friday, July 12, 2024 8:51 AM
To: [email protected]
Subject: Re: Mainframe history - 12 inch floppies?

On 7/11/2024 9:00 AM, Radoslaw Skorupka wrote:
H\ݛÝ[™[™›Ü›X][ۈ[ˆÛÛYH›ÛÚÈ]@BM mainframes used 12 inch
> floppy diskettes. Late 70's.
>
> Anybody heard about such diskettes?


When I first set foot in an IBM-mainframe computer room, the CPU and peripherals used 8"floppy diskettes for loading the internal code.

I never saw a 12" floppy diskette used.


--

Phoenix Software International
Edward E. Jaffe
831 Parkview Drive North
El Segundo, CA 90245
https://www.phoenixsoftware.com/


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