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Explain any two important characteristics of an embedded system.

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1. Application and domain specific:
•Each embedded system is having certain function to perform and developed in such a manner to do the intended function only.
•They cannot be used for any other purpose.
•You cannot replace the embedded control unit of your microwave oven and air-condition are 
•Specifically designed to performed specific task.

 2. Reactive and real time:
•ES are in constant interaction with a real world through sensor and user defined devices which are connecting to the input port of system.
•Any change happening in real world or an event are captured by the sensor or input devices. In real time and the control algorithm running inside the unit reacts in a designed manner, to bring the control output variable to the desired level.
•Real time operation means the timing behavior of the system, should be discriminated i.e.  The system should respond to the request or task in a known amount of time.

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