[Beowulf] Scale modl Cray-1

[Gus Correa]

Hearns, John wrote:
> Enjoy.  http://www.theregister.co.uk/2010/07/29/cray_1_replica/
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In this age of virtualization,
I was wondering if there are simulators in software (say, for Linux)
of famous old computers: PDP-11, VAX, Cray-1, IBM 1130, IBM/360,
CDC 6600, even the ENIAC perhaps.
 From instruction set, to OS, to applications.

Any references?

Thanks,
Gus Correa