ARPANET

The ARPANET was the first packet-based wide-area network; so called because it was initiated, and initially funded, by ARPA.

The protocol family used on the early ARPANET included:

• The Host-to-IMP Protocol, specified in BBN Report #1822 (multiple editions over time)
• ICP, Initial connection protocol
• Host-to-Host Protocol (early version here)
• FTP (early version here)
• TELNET
• MAIL (here is a much later proposal which eventually became SMTP)
• NAME/FINGER