ANALOG & DIGITAL TRANSMITION

ANALOG TRANSMITION

In analog transmition or signal, the transmition power varies (change) over a continuous range with respect to sound, light and radio waves.

EXAMPLE

Current, voice.

DIGITAL TRANSMITION

A digital signal may assume to be a discrete set of values within a given range.

  EXAMPLE

Computer, Networks.

                                                                           To

Digital ———->analog (Modulation)

                                                                          To

Analog ———>digital (Modulation)

MODEM

 Device which converts both Analog & Digital. Digital to Analog both signal are called Modem.

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