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An embedded system is the one that has computer-hardware with software integrated in it as the most significant component. It is a dedicated computer-based system, may be independent or part of a large system with the following components:
1. Hardware: It includes processor, timers, I/O devices, ports, memories, ports, etc.
2. Application software: To perform multiple tasks at the same time.
3. Real Time Operating System (RTOS): It supervises the application software and provides a mechanism to let the processor run a process as per scheduling and perform the context-switch between different processes.