Single Engine Structure
ENOS = EPOC(Symbian OS) + NOS(Nokia OS)
ENOS based products -> 3650, 6600, 9210 …
EPOC and NOS operate mostly independent
Both operating systems are executed on the same core – they use the same common memory devices and resources
CMT-APE (NOS-EPOC) communication based on Phone protocol
On execution NOS tasks have always higher priority
NOS is mainly focused on cellular modem activities (RF, powers, …)
EPOC is mainly focused on user interface activities
