ARPANET’s coming out party: when the Internet first took center stage ... By September of 1971, a Terminal IMP (TIP) had been installed, which permitted direct terminal access to the network.

The Internet began with a whimper, not a bang. And not everyone agrees on when that whimper occurred. But 40 years ago Thursday, the first communication over a computer network called ARPANET was ...

The first permanent ARPANET link was established weeks later on November 21, 1969, between the IMP at UCLA and the IMP at the Stanford Research Institute. By December 5, 1969, the entire four-node ...

Both men had worked on the development of the ARPANET network from about 1968. Also, while working for BBN, Kahn had developed the ARPANET IMP (Interface Message Processor), an early packet switch.

1968: Beranek and Newman, Inc. (BBN) unveils the final version of the Interface Message Processor (IMP) specifications. BBN wins ARPANET contract. 1969: On Oct. 29, UCLA’s Network Measurement ...

UCLA computer experts, lead be Mike Wingfield began building the host-to-IMP interface. · August 30, 1969 – BBN installed the first IMP at UCLA and within hours of its arrival the IMP and the Sigma – ...

BB&N employees were dismayed that the first 516, which they named IMP-0, ... But the ARPANET was no longer the only network out there. The two keystrokes on a Model 33 Teletype that changed history.

The Interface Message Processor (IMP) functioned as the internet’s first router (Credit: UCLA) I was on the phone with Bill when we tried this. I told him I typed the letter L.

It was the Saturday before Labor Day, 1969. Len Kleinrock and a throng of shaggy-haired grad students were pacing a loading dock on the campus of the University of California at Los Angeles, eagerl… ...

Basically, they connected their host computer to an ARPAnet IMP -- or Interface Message Processor, a second machine serving as a gateway to the larger network.

He had been principal architect of the ARPANET IMP (packet switch) while at BBN [Technologies]. Bob invited me to work with him on open networking in the spring of 1973.