The 1969 BBN Interface Message Processor

1969

A Bolt Beranek and Newman Interface Message Processor, the refrigerator-sized packet switch that formed each ARPANET node. Creeper (1971) moved between TENEX systems attached to exactly this hardware. File DateTimeOriginal is 2017, so this is a museum-era photograph of a period machine. The subject dates from 1969; the photograph itself is later.