On Thu, 11 Jul 2024 at 12:00, Radoslaw Skorupka <
[email protected]> wrote:

> I just found information in some book that IBM mainframes used 12 inch
> floppy diskettes. Late 70's.
>
> Anybody heard about such diskettes?
>

No, and they almost certainly never existed. Well perhaps in a lab
somewhere, but every wacky thing was in some lab at some point, but was
never shipped to a customer.

There is a remarkable amount of carelessness in a remarkable number of
technical/historical books. Some of it can be excused because the authors
were not "there" at the time, and are writing history from today's
perspective. But a lot is just laziness and lack of fact checking.

We can see this kind of thing already developing in this short email
conversation, where some people just jumped on to say oh yes, "they" were
used in the IBM xxxx, but either didn't read carefully or didn't care
enough, and they were agreeing with "8 inch" floppies. Not blaming anyone,
but that's how these things happen. Now when some AI picks it up as
training data it will happily halucinate a 12 inch floppy into existence.

Tony H.

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