MIT CSAIL shares the 1977 ARPANET logical map, a rare snapshot of the Internet's precursor

MIT_CSAIL · x · 2026-10-31

MIT CSAIL shared a March 1977 ARPANET logical map from the Computer History Museum. ARPANET was the first large-scale computer network, connecting institutions like MIT and Stanford, and served as the predecessor to the Internet. The map labels host machines (PDP-10s, PDP-11s, etc.) and satellite links across the early network topology.

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