WAN and Internet

The internet is an excellent example of WAN. The internet was born out of fear in the Pentagon, the US military headquarters, which wanted its researchers all over America to share sophisticated computers. In the days of the Cold War, it asked a military lab, Advanced Research Projects Agency ARPA, to create a large computer network that had no controlling centre. In the event of a nuclear attack on a centrally managed network, the Pentagon argued, all would be lost. Thus was born the ARPANET in 1969.

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