Looks like Mark is the winner. I first ran into them in SNA controllers
in the early 70s, where they served the same basic function, operating
system intallation and updates and diagnostics.
Moose
md@xxxxxxxxxxxx wrote:
>On Tue, 2 Mar 2004, Chuck Norcutt wrote:
>
>
>
>>To the best of my recollection IBM developed the 8" floppy originally
>>for updating the microcode on IBM mainframes.
>>
>>
>
>Close, the S/370's used the 8" floppy to load the microcode for the processor.
>The first product to use the 8" floppy was the IBM 3830 controller for the
>3330 disk storage. It was announced in June of 1970 and described as "a
>device which loads storage control programs and non-resident diagnostic
>programs".
> -mark
>
>
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