Week 3

History of the communication system

          Communication is the process where data or signal been send from one point to another point.The first information conveyed showed by the history is by direct method through people’s conversation.After realizing that distance has become the barrier, people start using smoke, letters or noise as a medium to send the signal.When the era changes and the people start to globalize, the technologies also start to grow to become more updated and make users easier to use.The new era of electronic communication also been trigged as time move on.The electronic communication system that has been created is a telegraph, telephone, fax, radio,satellite and mobile phone. The brief history of communication system can be seen as follow:

           Figure 1.2:Chronology of the electronic communication technology development

YEAR	EVENT
1844	Samuel Morse invented telegraph
1876	Alexander Graham Bell invented telephone
1904	Radio communication system was invented
1923-1938	Television was invented
1936	FM radio
1938-1945	Radar and microwave system was invented for World War II
1962	Beginning of the satellite communication system
1972	Creation of the mobile phone by Motorola
1988-1989	Optical communication and Internet