The invention of the transistor, the earliest computing machines, the World Wide Web and its evolution into the internet marked the high points of this part of the digital revolution. These inventions changed the way people worked, studied as well as sought information and of entertainment. These inventions transformed entertainment, socializing, commerce, politics and studies in ways that would hardly be conceivable a generation back. The next major stage in the digital revolution was the arrival of mobile devices, starting with the cellphone in 1973. Eventually this led to the development of tablets and smartphones where a significant feature is the integration with internet as well as online products and services. This has, in turn, opened up the scope for business, networking