In order to bring together all researchers from ARPA, Larry Roberts calls a conference in Ann Arbor, Michigan. Here Wesley Clark, one of the researchers suggests to let the so-called „Interface Message Processors“ (IMP) administrate the planned network. These IMPs were supposed to be placed in front of the actual computers.
Larry Roberts collects all ideas and adopted them to his plan for the ARPANET, to present it at another conference. At the ACM conference (Association for Computing Machinery) Donald Davies from RAND Corporation,
Paul Baran of the National Physical Laboratory (NPL) and Larry Roberts from ARPA meet for the first time, all of them came across the research work of the others the first time. Larry Roberts adopted Donald Davies’ concept of packet switching networks to his plan at once. During the conference Roberts decides to increase the bit rate, used on the upcoming ARPANET from 2.4 kbps to 50 kbps as well. Only a short time after this conference NPL, lead by Donald Watts Davies, create their own small network using packet switching technology.