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by one_buggy_boi 913 days ago
One of my first projects was to interface with an IMS system using Python of all things, there was only one guy that really knew the system and I had to sit with them for hours to even begin wrapping my head around how a hierarchical DBMS worked, how space is managed, etc. I remember the first comment he made was that the database was created for use as an inventory system for the Apollo missions. The DB I had to work with was created in the 80's. This project was in 2021, so it's still out there, supporting critical infrastructure.