lecture 2

Lecture two is telling about a short history of the computer and the internet. The original computer is various adding machines. As the year continuous, the computers become more and more powerful. It can do many things more that you can image. Because of the development of the computer technology, the internet was invented in 1960s. Through the internet you can get almost all information of the word. Internet makes the communication system change dramatically, like IM, P2P, Skype. Now there is an very common sense: what you don’t know and what you want to know, take it easy, google it.