What is the oldest hardware still in production use? How is it kept running? [closed]

Solution 1:

I can't really speak from personal experience, but:

I did read somewhare that some IBM 1130s (a 1960s vintage minicomputer) were still in production as control systems for a nuclear reactor at a few sites.

The main air traffic control system in the U.S. was still using IBM 7090s - the model before the system 360 - until it was decomissioned in the latter part of the 1990s. Towards the end of the system's life the authorities were quite jumpy as it was getting quite hard to find parts for the computers.

Solution 2:

I worked in a place where accountants were keeping some very very old i386 machines for some old research. Never touched those, i was afraid to destroy them :-)
In a very very large company i worked before, they had this mainframe still running. My job was to replace the old infrastructure in the peripheral offices from IBM SNA to Windows NT Domain with 3270 emulator. I have to check if still in use, but i think so :-)
Never worked on it, unluckily

Solution 3:

Obvious statement: I think that the old beige box that sits in the corner and must not be touched(!) is becoming less and less commonplace now that virtualisation is so simple to do.