Reproducing old machines with newer technology

Jay Jaeger cube1 at
Tue Jul 14 16:05:08 CDT 2015

Going all the way back to at least the IBM 7090, and presumably the 709,
though I have not actually checked.  The B5000 had IO processors as well.

On 7/14/2015 2:55 PM, William Donzelli wrote:
>> ...I/O processors.
> I do not think you can claim that the 6600 I/O processors were all
> that new. Many (most?) of the 1960s mainframes before the 6600 had
> channel controllers.
> --
> Will

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