Believe it or not, lots of sophisticated instruments are run by software on older gen OS’s. Writing complex softwares takes a long time (years or maybe over a decade), while OS changes on a yearly basis.I hope its old. They are running Windows XP.
And once the software is done, their OS is most likely well behind the latest. Of course, they can modify their software to fit the new OS. But that might take even longer. Keep in mind that this is highly sophisticated and complex software that we are talking about. When they finally finish upgrading their software to fit the new OS, the OS has changed again.
It’s a vicious cycle that the software engineers can never catch. So most of the complex softwares are usually run on outdated OS.