the second operating system on your phone

[Thorin]

Here's an interesting read about something I did not know - that there's a second operating system running on all the smartphones.

http://www.osnews.com/story/27416/The_second_operating_system_hiding_in_every_mobile_phone

It's the real-time operating system (RTOS) for the radio in the phone.

[Mr. Analog]

Yup pretty neat eh?

Layers on layers