Chapter 1 Introduction to EKA2
EKA2 is the core of the Symbian OS.
EPOC32 (EKA1) is the OS of Psion Series 5 and netBook @ 1997. it is based on 8086 memory model.
EKA2 is single user.multi-tasking.preemptively.priority-based.real-time.ROM-Based OS
EKA2 is for open but resouce constrian enviroment.(Memory and Power Limitation)
nano-kernal : Provide simple,supervisor-mode threads along with their scheduling and synch method.But it don't do any memory allocation.
symbian os kernal : MMU agnostic
symbian os can run signaling stack (GSM) and PIM software on a single processor provide cost saving.
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