1837 –Samuel Morse invented telegraph.
1858 –First telegraph cable across Atlantic (Canada – Ireland) 1876 – Alexander Graham Bell invented telephone.
1888 – Heinrich Hertz introduce electromagnetic field theory. 1897 – Marconi invented wireless telegraph.
1906 –Radio communication system was invented. 1923 –Television was invented.
1938 –Radar and microwave system was invented for World War II. 1950 –TDM was invented.
1956 –First telephone cable was installed across Atlantic. 1960 –Laser was invented
1962 – Satellite communication 1969 – Internet DARPA
1970 – Corning Glass invented optical fiber. 1975 – Digital telephone was introduced. 1985 – Facsimile machine.
1988 – Installation of fiber optic cable across Pacific and Atlantic. 1990 –World Wide Web and Digital Communication. 1998 – Digital Television.
Thanks for the historical overview.
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