MAME
MAME was in the beginning an emulator for Arcade games on a PC. Today it has become a big project which emulates many computers and game consoles. See the wikipedia article for more information.
Dave Rand, one of the fathers of Definicon, wants to bring up as many Series 32000 systems to MAME as possible. The list of computers is already very impressive. You will find the PC532 and also the PC-MX2 from Siemens (!) among others. His project can be found on github .
MAME is software and therefore not my world. I never downloaded the stuff from github. But I hope that I will see MAME running on somebodys else computer.
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