Communication

Communication

Communication 

Communication is the basic process of exchanging information. It is what human beings do to convey their thoughts, ideas and feeling to one another.

Introduction:-

• The process of transfer of information from one place to other place is called as communication.

• In early days peoples used to smoke, light, sound, etc. for communication.

• In late nineteenth century, a telegraph (1836) and telephone (1876) were invented.

• In any communication three things are required which are transmitter, communication media or channel and receiver.

• New era of communication began in 1888, when Heartz succeeded in producing and detecting electromagnetic waves.

• Marconi was awarded the Nobel Prize in physics 1909 for his work in developing wireless telegraphy (Radio).

• There are main two types of communication i.e. wireless communication and line communication.

• Now a day’s communication is possible using electronic instruments like, T.V., Radio, Telephone, mobile phone, internet etc.

• For the communication of information using above stated instrument, different layer of atmosphere are used to transmit and receive the signals.