TheARPANET (Advanced Research Projects Agency NETwork) was an early computer network, constructed in 1969 as a robust medium to transmit sensitive military data and to connect leading research groups throughout the United States. ARPANET first ran NCP (Network Control Protocol) and subsequently the first version of the Internet protocol orTCP/IP suite, making ARPANET a prominent part of the nascentInternet. ARPANET was closed in early 1990.

See also

• ARPANET on Wikipedia
• Related glossary terms:
  • .arpa
  • TCP