Information communication technology

Advantages of microwaves:

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  Large Bandwidth –Microwaves are used for point to point communication.
  
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  Small size Antenna – The antenna size can be smaller as the size of antenna is inversely proportional to the transmitted frequency.
  
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  Low power Consumption- As microwave have high frequency thus requires very less power.
  
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  Effect of fading – While at low frequency signals, the layers around the earth causes fading of the signal.
  

7. 
   Satellite Communication-
   

A communication satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder a communication channel between a source transmitter and a receiver at different locations on earth. Arthur C. Clarke is often quoted as being the inventor of the communications satellite. We use satellite communication in various thing, so its application are many such as telephone, satellite television is used for television, internet, radio, military etc. In a satellite communication, the satellite which is stationed in the space system for transmission of signals plays a signification role. The satellite are generally equipped with an antenna and transponder to facilitate the communication process. The satellite majorly works on the solar power which is continuously received by the satellite solar panels.
Uses of satellite Communications;

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  Traditional Telecommunication
  
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  Cellular
  
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  Television signals
  
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  Marine communication
  

8. 
   Fiber optical communication-
   

Fiber-optical communication is a system in which information is sent from one people to another via optical fibers as light points. Light develops an electromagnetic wave carrier that methodically carries the information along. It was first developed in the 1970,fiber optical have revolutionized the telecommunications industry and have played a major role in the advent of the information age. Fiber optic communication is not new- it was invented by Alexander Graham bell in 1880 for the Photo phone. Because of its advantage over electrical transmission, optical fibers have largely replaced copper wire communication in core network in the developed world.