As part of the
DARPA project to connect the disparate computers at its various contractors, there was a push to build a mobile
packet radio laboratory to house a node of the early network, partly to simulate the needs of in-the-field military to connect to the network, and partly to test
internetworking - connecting different communications protocols via the
internet protocol suite. The
Packet Radio Van, designed by Don Cone, was a large GMC van and contained all of the equipment needed to be an ARPANET node via packet radio. Other equipment included a shielded generator, a DEC
LSI-11 16-bit minicomputer, flexible equipment racks, and air conditioning. Due to his contributions around that time, Cone was promoted to Research Engineer. Cone retired from SRI in the early 1990s, and focused on his love of photography; he embraced digital photography when that technology developed. He died of pancreatic and lung cancer on April 7, 2011. ==References==