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People discovered fire, developed paper from plants and used stones to write and communicate. (e.g: clay tablets, cave paintings, papyrus in Egypt)
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People used the power of steam, developed machine tools for communication. (e.g: Printing Press, Newspaper, Telephone, Telegraph)
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The invention of transistors. In this age, long distance communication became efficient. (e.g: transistor radio, Large electronic computers, Mainframe computers)
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The Internet paved the way for faster communication and creation of social networking sites. The technology was more advanced and creation of mobile devices, etc. are now present. (e.g: mosaic, google, friendster, portable laptops, tablet )
