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Worse, it's probably an emulation of a Unix mainframe running the original Cobol code - with the emulator running in machine generated JavaScript in Nodejs on AWS...

(Obligatory xkcd comic: https://xkcd.com/1926/ )




No, more likely it's a newer IBM mainframe, as those are built to be backwards-compatible with software written back in the 60s.


A large bank in the uk runs their core software on AS400s emulating a 1401. Their ledger software is almost 60 years old.




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