Interface Message Processor

While in Redwood City, CA and I had the chance to get a picture of a former production IMP (Interface Message Processor) from the early 70’s. Reading about the early architecture of ARPANET sparked my interest in telecommunications at an early age; it was a unique opportunity to see one of the first routers that moved traffic in the precursor to the modern day Internet.

IMG_0095

IMG_0091

Based on Report 2059 from Bolt Beranek and Newman Inc. in October of 1970, it looks like IMP #11 was installed at Stanford University for testing on a new 230.4 kilobit/sec circuit in the third quarter of 1970.

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