Louis Pouzin

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Louis Pouzin (born 1931 in Chantenay-Saint-Imbert, Nièvre, France) invented the datagram and designed an early packet communications network, CYCLADES.[1][2]

He studied at the École Polytechnique.

His work influenced Robert Kahn, Vinton Cerf, and others in the development of TCP/IP protocols used by the Internet.[1]

Having participated in the design of the Compatible Time Sharing System (CTSS), Pouzin wrote a program called RUNCOM around 1963/64. RUNCOM permitted the execution of contained commands within a folder, and can be considered the ancestor of the command-line interface and shell scripts. Pouzin was, in fact, the one who coined the term shell for a command language in 1964 or '65. Pouzin's concepts were later implemented in Multics by Glenda Schroeder at MIT.[3]

In 2013, he founded Savoir-Faire, an alternative root company, with Chantal Lebrument and Quentin Perrigueur. [4][5]


1997 - Pouzin received the ACM SIGCOMM Award for "pioneering work on connectionless packet communication".[1]

2003 - Louis Pouzin was named a Chevalier of the Legion of Honor by the French government on March 19, 2003.

2012 - Pouzin was inducted into the Internet Hall of Fame by the Internet Society.[6]

2013 - Pouzin was one of five Internet and Web pioneers awarded the inaugural Queen Elizabeth Prize for Engineering.[7]


  1. ^ a b c "Postel and Pouzin: 1997 SIGCOMM Award Winners", ACM SIGCOMM web site
  2. ^ "A Technical History of CYCLADES", Technical Histories of the Internet & other Network Protocols (THINK), University of Texas, 11 June 2002
  3. ^ "The Origin of the Shell", Multicians, accessed 31 March 2012
  4. ^ http://owni.fr/2012/01/13/les-nouvelles-root-de-l%E2%80%99internet/
  5. ^ Savoir-faire biographies - http://www.open-root.eu/decouvrir-open-root/biographies/
  6. ^ 2012 Inductees, Internet Hall of Fame website. Last accessed April 24, 2012
  7. ^ "2013 Winners Announced" Queen Elizabeth Prize for Engineering