Is 2 years ago close enough? https://www.vice.com/en/article/zmp8gy/the-forgotten-operating-system-that-keeps-the-nyc-subway-system-alive https://www.vice.com/

Is 2 years ago close enough? https://www.vice.com/en/article/zmp8gy/the-forgotten-operating-system-that-keeps-the-nyc-subway-system-alive https://www.vice.com/en/article/zmp8gy/the-forgotten-operati...