@nuintari It was 2006, I think (or 2007 at the latest), and I went with a colleague to a company - the same one that, incidentally, gave us some decommissioned Digital AlphaStations. They showed me a machine (not connected to the network, obviously) that they were still using for payroll. I couldn't quite tell what it was exactly, but it was some kind of Unix system and it had been rebooted for the last time... in 1986. I believe it’s the longest uptime I’ve ever seen.