Metcalfe's law - technical definition

The value of a telecommunications network is proportional to the square of the number of users (n 2 ) of the system. Robert Metcalfe developed the law to describe the value of Ethernet, which he invented in early 1973. Metcalfe's law is used to describe the value of network technologies such as telephones, fax machines, the Internet, and the World Wide Web (WWW). See also Ethernet and Metcalfe, Robert Melancton.