🛠️ Invention or technique

ALOHAnet, first wireless packet network

ALOHAnet, primera red inalámbrica de paquetes

Date
junio de 1971 · confidence high
Place
University of Hawaii, Honolulu, Hawaii, United States
Credited to
Norman Abramson and colleagues at the University of Hawaii
Field
Communication

What it is

A radio network that linked computers on the Hawaiian islands to the central machine on Oʻahu, using random channel access (pure ALOHA) and retransmitting packets after a collision. It was the first system of its kind.

The pure ALOHA protocol was described in 1970 and the network began running in 1971; its slotted version doubled throughput. Ethernet took inspiration from it but adapted it to cable.

What it led to

  • Metcalfe's Ethernet, which adopted the idea of random access
  • multiple-access protocols in Wi-Fi and mobile telephony
  • satellite and packet-radio networks
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Sources✓ verified 2026-11-04