c.curionodeThe Turing Archive

2022 · Networks & the Web

Connecting the computers next door

Ethernet made local networking a shared, practical technology.

2022Turing Award

Visual guide

The prize, pictured

Connecting the computers next door: Ethernet made local networking a shared, practical technology.
Original conceptual diagram by Curionode. Read the text version below for the full explanation.
Read the poster text
  1. Connect

    Link devices on a local network.

  2. Frame

    Address data for delivery.

  3. Standardise

    Make equipment work together.

Collision handling describes classic shared Ethernet; modern switched full-duplex Ethernet works differently.

01 · The idea

In everyday language

Robert Metcalfe invented Ethernet and advanced its standardisation and commercial use. The original system let computers communicate over a shared local medium, coordinating access and handling collisions. Ethernet then evolved into a broad family of networking technologies with very different physical and switching arrangements.

Why it matters

Common local-network standards helped connect computers, printers and other resources across organisations.

02 · The people

Who brought the idea to life?

Illustrated portrait of Bob Metcalfe

Bob Metcalfe

Bob Metcalfe co-invented Ethernet at Xerox PARC with David Boggs, developing a practical way for nearby computers to share a communication medium. He later founded 3Com and helped turn Ethernet from a laboratory system into an industry standard and commercial technology. His career also includes teaching, venture capital, and research. The award recognizes invention, standardization, and commercialization together, reflecting how networking technologies reach broad use.

Read the biography ↗

03 · Read further

From the original sources

Original explanations based on the official award record. The subject label is an editorial navigation aid.

  1. Official ACM profile: Bob Metcalfe ↗amturing.acm.org
  2. Heidelberg Laureate Forum: Bob Metcalfe ↗www.heidelberg-laureate-forum.org