In 1986 the National Science Foundation connected NSFnet to the Internet. This network connected universities, state academic networks, five United States based supercomputer centers, and research labs and consortiums. NSFnet became the major U.S Internet network. The National Science Foundation had major responsibility for this network from 1987 through 1995. After 1995 other companies began taking over responsibility of this network.

Similar networks such as EARN or European Academic Research Network, and PACCOM or PACific COMmunication Network were developing overseas. In the early 1990s these networks were connected to the U.S. Internet to form the beginnings of today's Internet. A worldwide network specifically designed for computers had been born.