[aap_]

Is it at all possible to get a peak into that world as a curious person?

[anthk]

http://ibm1130.org/emu/

https://opensimh.org/simdocs/ibm1130_doc.html

[pjmlp]

Unisys not, but the one predating UNIX,

https://multicians.org/simulator.html

[aap_]

With Multics i'm familiar enough, i meant unisys specifically.