Essential components of embedded system includes:

☛ Hardware

☛ Processor

☛ Memory

☛ Timers

☛ I/O circuits

☛ System application specific circuits

☛ Software

☛ It ensures the availability of System Memory

☛ It checks the Processor Speed availability

☛ The need to limit power lost when running the system continuously

☛ Real Time Operating System

☛ It runs a process as per scheduling and do the switching from one process to another