Embedded Systems

• An embedded system can be thought of as a computer hardware system having software embedded in it. An embedded system can be an independent system or it can be a part of a large system.

1. Embedded System contains micro processor and micro controllers.
2. It has hard ware, software,Real Time operating System(RTOS).
3. RTOS controls the application software.
4. It is the basic unit that takes inputs and produces an output after processing the data.

                                                  control unit and execution unit.

• The Control Unit includes a fetch unit for fetching instructions from the memory
• The Execution Unit has circuits that implement the instructions pertaining to data transfer operation and data conversion from one form to another.

Embedded System is combination of Micro processors and Micro controllers.

Micro processor:

Micro controller: