Answer:
Telecommunication has revolutionised communication in today world. Telecommunication occurs when the exchange of information between two or more entities includes the use of technology. Earlier, for long distance communication means used were visual signals, beacons smoke signals, signal flags etc. Now with changing technology, telephones, teleprinters, radio networks are being used. Developments in technology have helped in increasing the number of mobile devices. They enable people to communicate anytime, anyplace, anywhere. There is a wealth of information available to society that can be accessed on demand-the communication system has been thoroughly revolutionised. The use of computers and the Internet and transmission of messages through undersea cables and radio waves have made communication fast and effective. Now electronic mails and SMS through the Internet and cellular phones have made our lives comfortable?so much so that the physical distances are still the same still the world has shrunk to a global village.
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