Packet Radio
he Packet Radio Van was a van refitted by Don Cone at SRI International, and equipped with technology that was used in the first two-way internetworked transmission on August 27, 1976, and the first three-way internetworked transmission on November 22, 1977; the latter of which is considered the start of the Internet
wikipedia, SRI international 1977
RI’s Internet Van, site of the first three-way internetworked transmission – SRI international 1977