Louis Pouzin
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Louis Pouzin (April 20, 1931 in
Chantenay-Saint-Imbert Chantenay-Saint-Imbert () is a commune in the Nièvre department in central France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regi ...
,
Nièvre Nièvre () is a department in the Bourgogne-Franche-Comté region, central-east France. Named after the river Nièvre, it had a population of 204,452 in 2019.packet communications network,
CYCLADES The Cyclades (; el, Κυκλάδες, ) are an island group in the Aegean Sea, southeast of mainland Greece and a former administrative prefecture of Greece. They are one of the island groups which constitute the Aegean archipelago. The name ...
. This network was the first actual implementation of the pure
datagram A datagram is a basic transfer unit associated with a packet-switched network. Datagrams are typically structured in header and payload sections. Datagrams provide a connectionless communication service across a packet-switched network. The deliv ...
model, initially conceived and described by Donald Davies, subsequently named by Halvor Bothner-By, and seen by Louis Pouzin as his personal invention. His work, and that of his colleagues
Hubert Zimmerman Hubert Zimmermann (15 November 1941 – 9 November 2012) was a French software engineer and a pioneer of computer networking. Biography Zimmermann was educated at École Polytechnique and École Nationale Supérieure des Télécommunications. ...
and Gérard Le Lann, were acknowledged by Vinton Cerf as substantial contributions to the design of
TCP/IP The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the su ...
, the protocol suite used by the
Internet The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, p ...
.


Biography

He studied at the
École Polytechnique École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...
from 1950 to 1952. Having participated in the design of the
Compatible Time-Sharing System The Compatible Time-Sharing System (CTSS) was the first general purpose time-sharing operating system. Compatible Time Sharing referred to time sharing which was compatible with batch processing; it could offer both time sharing and batch proces ...
(CTSS) at MIT, Pouzin wrote a program for it called RUNCOM around 1963–64. RUNCOM permitted the execution of commands contained within a folder and can be considered the ancestor of the command-line interface and
shell script A shell script is a computer program designed to be run by a Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. Typical operations performed by shell scripts include file man ...
s. Pouzin was the one who coined the term '' shell'' for a command language interpreter separate from the kernel in 1964 or 1965. Pouzin's concepts were later implemented in
Multics Multics ("Multiplexed Information and Computing Service") is an influential early time-sharing operating system based on the concept of a single-level memory.Dennis M. Ritchie, "The Evolution of the Unix Time-sharing System", Communications of ...
by
Glenda Schroeder Glenda Schroeder is an American software engineer noted for implementing the first command-line user interface shell and publishing one of the earliest research papers describing electronic mail systems while working as a member of the staff at th ...
at MIT. Schroeder developed the first Multics shell with the assistance of an unnamed man from
General Electric General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable ene ...
. Schroeder's Multics shell was the predecessor to the Unix shell, which is still in use today. Working with Glenda Schroeder and Pat Crisman, he also described an early e-mail system called "MAIL" to allow users on the CTSS to send notifications to others about backups of files. Each user's messages would be added to a local file called "MAIL BOX", which would have a “private” mode so that only the owner could read or delete messages. The proposed uses of the proto-email system were for communication from CTSS to notify users that files had been backed up, discussion between authors of CTSS commands, and communication from command authors to the CTSS manual editor. The service only made it possible to leave messages for the other users on the same computer. The idea to allow users to send messages between computers was developed later by Ray Tomlinson in 1971. From 1967 to 1969 Pouzin developed one operating system for
Météo-France Météo-France is the French national meteorological service. Organisation The organisation was established by decree in June 1993 and is a department of the Ministry of Transportation. It is headquartered in Paris but many domestic operations ...
, the French national meteorological service, using CDC 6400 as hardware. This system was created for weather forecast and statistics and was used for 15 years. Pouzin directed the pioneering
CYCLADES The Cyclades (; el, Κυκλάδες, ) are an island group in the Aegean Sea, southeast of mainland Greece and a former administrative prefecture of Greece. They are one of the island groups which constitute the Aegean archipelago. The name ...
networking project from 1971 to 1976. Building on Donald Davies’s simulation of
datagram A datagram is a basic transfer unit associated with a packet-switched network. Datagrams are typically structured in header and payload sections. Datagrams provide a connectionless communication service across a packet-switched network. The deliv ...
networks, Pouzin built the CIGALE packet switching network. CYCLADES used a layered architecture, as did the Internet later, to research
internetworking Internetworking is the practice of interconnecting multiple computer networks, such that any pair of hosts in the connected networks can exchange messages irrespective of their hardware-level networking technology. The resulting system of interc ...
concepts. He participated in the International Networking Working Group from 1972, initially chaired by Vint Cerf. He was acknowledged by Bob Kahn and Cerf in their seminal 1974 paper on internetworking protocols, ''"A Protocol for Packet Network Intercommunication"''. In 2002 Pouzin, along with Jean-Louis Grangé, Jean-Pierre Henninot and Jean-François Morfin, participated in the creation of Eurolinc, which is a non-profit association that promotes multilingualism in
domain names A domain name is a string that identifies a realm of administrative autonomy, authority or control within the Internet. Domain names are often used to identify services provided through the Internet, such as websites, email services and more. ...
. In June 2003, Eurolinc was accredited by UNO to participate at the World Summit on the Information Society (WSIS). In November 2011, he founded Savoir-Faire, an alternative root company, with Chantal Lebrument and Quentin Perrigueur. In 2012 he developed a service called Open-Root, which is dedicated to sell
top-level domain A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the root zone of the name space. For all domains in ...
s (TLD) in all scripts outside of
ICANN The Internet Corporation for Assigned Names and Numbers (ICANN ) is an American multistakeholder group and nonprofit organization responsible for coordinating the maintenance and procedures of several databases related to the namespaces ...
. This way people can develop second-level domains for free.


Awards

*1997 – Pouzin received the ACM SIGCOMM Award for "pioneering work on connectionless packet communication"."Postel and Pouzin: 1997 SIGCOMM Award Winners"
ACM SIGCOMM web site
*2003 – Louis Pouzin was named a Chevalier of the Legion of Honor by the French government on March 19, 2003.https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000037909697&categorieLien=id *2012 – Pouzin was inducted into the Internet Hall of Fame by the Internet Society. *2013 – Pouzin was one of five Internet and Web pioneers awarded the inaugural
Queen Elizabeth Prize for Engineering The Queen Elizabeth Prize for Engineering, also known as the QEPrize, is a global prize for engineering and innovation. The prize was launched in 2012 by a cross-party group consisting of David Cameron, Nick Clegg, and Ed Miliband, then Prime ...
. *2016 – Pouzin received the
Global IT Award Global means of or referring to a globe and may also refer to: Entertainment * Global (Paul van Dyk album), ''Global'' (Paul van Dyk album), 2003 * Global (Bunji Garlin album), ''Global'' (Bunji Garlin album), 2007 * Global (Humanoid album), ''Gl ...
."Louis Pouzin"
Global IT Award.
*2018 – Pouzin is promoted Officer of the Legion of Honor


See also

* History of the Internet * Internet in France *
Internet pioneers Instead of having a single "inventor", the Internet was developed by many people over many years. The following are some Internet pioneers who contributed to its early and ongoing development. These include early theoretical foundations, specifyi ...
*
Protocol Wars A long-running debate in computer science known as the Protocol Wars occurred from the 1970s to the 1990s when engineers, organizations and nations became polarized over the issue of which communication protocol would result in the best and most ...
* Rémi Després


References


Further reading

* * *


External links


Louis Pouzin: a major Internet figure
INRIA {{DEFAULTSORT:Pouzin, Louis École Polytechnique alumni French computer scientists 1931 births Living people Internet pioneers Chevaliers of the Légion d'honneur