Jim Macklin wrote:
More likely Linux or a machine code.

I would be surprised if they wrote their own OS but its possible. We
often use Embedded Windows in our products (electronic test equipment).
We could use Linux but Embedded Windows is more stable. There is no way
for the customer to tell its Windows though. I bet there are a lot of
devices out there running embedded Windows that customers don't know
about (self-checkouts, gas pumps, etc).

-Robert