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Ethernet on a Napkin

One of the early sketches about how a cable-based local area network might work, attributed to Ethernet co-inventer Robert Metcalf, father of modern 10 Megabit-per-second networks. Just invent a few routers, switches, security, wireless, management, PCs, servers and you have a local and wide area internet!

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Uploaded on July 28, 2008
Taken on July 1, 2009