DIGITAL ELECTRONIC

 

ELECTRONICS:     the branch of engineering which deals with current conduction through a vacuum or gas or semiconductor is known as electronic.

 

ANALOG SIGNAL:   A continuously varying signal (voltage or current) is called an analog signal

For example: sinusoidal voltage.

 

Digital signal: A signal which can have only two discrete values is called a digital signal.

For example a square wave is a digital signal.

                                                                                            

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Digital circuit :    An electronic circuit that handles only a digital signal is called a digital circuit.

                                                                                                  

 Uses of digital Circuit :   communication , transportation, medicines, industrial ,automation , manufacturing controls etc.  

 

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