The object
Robert Metcalfe invented, standardized and commercialized Ethernet, the packet-based local-area-network technology embodied in network interface cards, hubs and switches. It gave personal computers a practical shared physical link and remains the dominant wired LAN technology in offices, data centers and industrial networks.
What Robert did
Invented, standardized and commercialized Ethernet for linking computers through packet-based local-area-network equipment.
Why it matters
NIHF describes Ethernet as the most widely used LAN and reports that more than a quarter-billion new Ethernet switch ports ship annually worldwide.
Living-status check
SRI’s PARC Forum published an April 11, 2025 episode featuring Metcalfe as a keynote speaker in its celebration of Ethernet and other computing milestones.