What about:

- servers living in datacenters

- realtime operating systems in embedded devices

- the Intel Management Engine

- the OS on every smart chip in credit cards and debit cards

- wireless cameras, roombas, smart TVs, smart fridges

- cars. Those automotive systems have OSes too right?

- all those IoT devices, including California’s traffic cameras

What age signals should those devices send out? Is there an exclusionary clause?