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{{Short description|Early computer network in the US}}
{{Short description|Early computer network in the US}}
{{Internet history timeline}}
[[File:CSNET_diagram.png | thumb | right | A diagram for CSNET members in the USA in 1983.]]
 
The '''Computer Science Network''' ('''CSNET''') was a computer network that began operation in 1981 in the United States.<ref name="nsf">{{Cite web |title= The Internet—From Modest Beginnings |work= NSF website |url= https://www.nsf.gov/about/history/nsf0050/internet/modest.htm |accessdate= September 30, 2011 |archive-url= https://web.archive.org/web/20161007113705/https://www.nsf.gov/about/history/nsf0050/internet/modest.htm |archive-date= 2016-10-07 |url-status= dead }}</ref> Its purpose was to extend networking benefits, for [[computer science]] departments at academic and research institutions that could not be directly connected to [[ARPANET]], due to funding or authorization limitations. It played a significant role in spreading awareness of, and access to, national networking and was a major milestone on the path to development of the global [[Internet]].  CSNET was funded by the  [[National Science Foundation]] for an initial three-year period from 1981 to 1984.
The '''Computer Science Network''' ('''CSNET''') was a computer network that began operation in 1981 in the United States.<ref name="nsf">{{Cite web |title= The Internet—From Modest Beginnings |work= NSF website |url= https://www.nsf.gov/about/history/nsf0050/internet/modest.htm |accessdate= September 30, 2011 |archive-url= https://web.archive.org/web/20161007113705/https://www.nsf.gov/about/history/nsf0050/internet/modest.htm |archive-date= 2016-10-07 |url-status= dead }}</ref> Its purpose was to extend networking benefits, for [[computer science]] departments at academic and research institutions that could not be directly connected to [[ARPANET]], due to funding or authorization limitations. It played a significant role in spreading awareness of, and access to, national networking and was a major milestone on the path to development of the global [[Internet]].  CSNET was funded by the  [[National Science Foundation]] for an initial three-year period from 1981 to 1984.


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<!-- Deleted image removed: [[File:CSNET Geographic Map 1987.jpg|thumb|right|CSNET Geographic Map circa 1987]] -->
<!-- Deleted image removed: [[File:CSNET Geographic Map 1987.jpg|thumb|right|CSNET Geographic Map circa 1987]] -->


By 1986 about 150 computers connected to [[ARPANET]], and about 2000 computers to the larger Arpa [[Internet]]. Membership of ARPANET was restricted to universities and companies with [[United States Department of Defense]] contracts. Other commercial, educational, and nonprofit organizations, ineligible for membership, wanted to interchange information with them.<ref name="fisher19880425">{{Cite magazine |last=Fisher |first=Sharon |date=1988-04-25 |title=The Largest Computer Network |url=https://books.google.com/books?id=pj0EAAAAMBAJ&pg=PA57#v=onepage&q&f=false |access-date=2025-04-17 |magazine=InfoWorld |pages=S7-S10}}</ref>
By 1986 about 150 computers connected to [[ARPANET]], and about 2000 computers to the larger Arpa [[Internet]]. Membership of ARPANET was restricted to universities and companies with [[United States Department of Defense]] contracts. Other commercial, educational, and nonprofit organizations, ineligible for membership, wanted to interchange information with them.<ref name="fisher19880425">{{Cite magazine |last=Fisher |first=Sharon |date=1988-04-25 |title=The Largest Computer Network |url=https://books.google.com/books?id=pj0EAAAAMBAJ&pg=PA57 |access-date=2025-04-17 |magazine=InfoWorld |pages=S7–S10}}</ref>


[[Lawrence Landweber]] at the [[University of Wisconsin–Madison]] prepared the original CSNET proposal, on behalf of a consortium of universities ([[Georgia Tech]], [[University of Minnesota]], [[University of New Mexico]], [[University of Oklahoma]], [[Purdue University]], [[University of California, Berkeley]], [[University of Utah]], [[University of Virginia]], [[University of Washington]], [[University of Wisconsin–Madison|University of Wisconsin]], and [[Yale University]]). The US [[National Science Foundation]] (NSF) requested a review from [[David J. Farber]] at the [[University of Delaware]]. Farber assigned the task to his graduate student Dave Crocker who was already active in the development of [[email|electronic mail]].<ref>{{Cite web |title=Impact of Email Work at The Rand Corporation in the mid-1970s |author=Dave Crocker |date=August 18, 2008 |url=http://bbiw.net/articles/rand-email.pdf |accessdate=September 30, 2011 |archive-url=https://web.archive.org/web/20120510112529/http://bbiw.net/articles/rand-email.pdf |archive-date=May 10, 2012 |url-status=dead }}</ref> The project was deemed interesting but in need of significant refinement. The proposal eventually gained the support of [[Vinton Cerf]] and [[DARPA]]. In 1980, the NSF awarded $5 million to launch the network. It was an unusually large project for the NSF at the time.<ref>{{Cite journal |title=History and overview of CSNET |author=Douglas Comer |journal=Communications |date=October 1983 |volume=26 |pages=747–753 |number=10 |doi=10.1145/358413.358423 |s2cid=11943330 |author-link=Douglas Comer |doi-access=free }}</ref>
[[Lawrence Landweber]] at the [[University of Wisconsin–Madison]] prepared the original CSNET proposal, on behalf of a consortium of universities ([[Georgia Tech]], [[University of Minnesota]], [[University of New Mexico]], [[University of Oklahoma]], [[Purdue University]], [[University of California, Berkeley]], [[University of Utah]], [[University of Virginia]], [[University of Washington]], [[University of Wisconsin–Madison|University of Wisconsin]], and [[Yale University]]). The US [[National Science Foundation]] (NSF) requested a review from [[David J. Farber]] at the [[University of Delaware]]. Farber assigned the task to his graduate student Dave Crocker who was already active in the development of [[email|electronic mail]].<ref>{{Cite web |title=Impact of Email Work at The Rand Corporation in the mid-1970s |author=Dave Crocker |date=August 18, 2008 |url=http://bbiw.net/articles/rand-email.pdf |accessdate=September 30, 2011 |archive-url=https://web.archive.org/web/20120510112529/http://bbiw.net/articles/rand-email.pdf |archive-date=May 10, 2012 |url-status=dead }}</ref> The project was deemed interesting but in need of significant refinement. The proposal eventually gained the support of [[Vinton Cerf]] and [[DARPA]]. In 1980, the NSF awarded $5 million to launch the network. It was an unusually large project for the NSF at the time.<ref>{{Cite journal |title=History and overview of CSNET |author=Douglas Comer |journal=Communications |date=October 1983 |volume=26 |pages=747–753 |number=10 |doi=10.1145/358413.358423 |s2cid=11943330 |author-link=Douglas Comer |doi-access=free }}</ref>
A stipulation for the award of the contract was that the network needed to become self-sufficient by 1986.<ref name="nsf"/>
A stipulation for the award of the contract was that the network needed to become self-sufficient by 1986.<ref name="nsf"/>


The first management team consisted of Landweber (University of Wisconsin), Farber (University of Delaware), [[Peter J. Denning]] ([[Purdue University]]), [[Anthony C. Hearn]] ([[RAND Corporation]]), and Bill Kern from the NSF.<ref>{{Cite book |author1=Peter J. Denning |author2=Anthony Hearn |author3=C. William Kern |title=Proceedings of the symposium on Communications Architectures & Protocols - COMM '83 |chapter=History and overview of CSNET |publisher=[[SIGCOMM]], [[Association for Computing Machinery]] |date=April 1983 |volume=13 |number=2 |page=138 |doi=10.1145/1035237.1035267 |isbn=978-0-89791-089-7 |s2cid=28021088 |url=http://www.isoc.org/internet/history/documents/Comm83.pdf |access-date=2011-09-30 |archive-url=https://web.archive.org/web/20111026035120/http://www.isoc.org/internet/history/documents/Comm83.pdf |archive-date=2011-10-26 |url-status=dead |author1-link=Peter J. Denning }}</ref> Once CSNET was fully operational, the systems and ongoing network operations were transferred to a team led by Richard Edmiston<ref>{{Cite journal|last1=Partridge|first1=Craig|last2=Blumenthal|date=March 2006|title=Data Networking at BBN|journal=IEEE Annals of the History of Computing|volume=28|issue=1|pages=63|doi=10.1109/MAHC.2006.7|s2cid=16881178}}</ref> at [[BBN Technologies|Bolt Beranek and Newman]] (BBN) of [[Cambridge, Massachusetts]] by 1984.<ref>{{Cite web |title=CSNET Transition Plan Bulletin #1 |author=Rick Adrion |date=October 5, 1983 |work=email message |publisher=National Science Foundation |url=http://www.rfc-editor.org/in-notes/museum/csnet-transition-bulletin.n1.1 |accessdate=September 30, 2011}}</ref>
The first management team consisted of Landweber (University of Wisconsin), Farber (University of Delaware), [[Peter J. Denning]] ([[Purdue University]]), [[Anthony C. Hearn]] ([[RAND Corporation]]), and Bill Kern from the NSF.<ref>{{Cite book |author1=Peter J. Denning |author2=Anthony Hearn |author3=C. William Kern |title=Proceedings of the symposium on Communications Architectures & Protocols - COMM '83 |chapter=History and overview of CSNET |publisher=[[SIGCOMM]], [[Association for Computing Machinery]] |date=April 1983 |volume=13 |number=2 |page=138 |doi=10.1145/1035237.1035267 |isbn=978-0-89791-089-7 |s2cid=28021088 |url=http://www.isoc.org/internet/history/documents/Comm83.pdf |access-date=2011-09-30 |archive-url=https://web.archive.org/web/20111026035120/http://www.isoc.org/internet/history/documents/Comm83.pdf |archive-date=2011-10-26 |url-status=dead |author1-link=Peter J. Denning }}</ref> Once CSNET was fully operational, the systems and ongoing network operations were transferred to a team led by Richard Edmiston<ref>{{Cite journal|last1=Partridge|first1=Craig|last2=Blumenthal|date=March 2006|title=Data Networking at BBN|journal=IEEE Annals of the History of Computing|volume=28|issue=1|pages=63|doi=10.1109/MAHC.2006.7|bibcode=2006IAHC...28a..56P |s2cid=16881178}}</ref> at [[BBN Technologies|Bolt Beranek and Newman]] (BBN) of [[Cambridge, Massachusetts]] by 1984.<ref>{{Cite web |title=CSNET Transition Plan Bulletin #1 |author=Rick Adrion |date=October 5, 1983 |work=email message |publisher=National Science Foundation |url=http://www.rfc-editor.org/in-notes/museum/csnet-transition-bulletin.n1.1 |accessdate=September 30, 2011}}</ref>


The Purdue team, consisting of Peter Denning, Douglas Comer, and Paul McNabb, was responsible for designing and building the kernel interfaces that would allow sites outside of the ARPANET infrastructure to connect via public [[X.25]] networks, such as [[Telenet]]. The mechanism allowed systems with TCP/IP network stacks to use an X.25 network device, with IP datagrams being sent through dynamically allocated X.25 sessions. Purdue and other sites with ARPANET access would act as gateways into the ARPANET, allowing non-ARPANet sites to have email, telnet, ftp, and other forms of network access directly into the ARPANET.
The Purdue team, consisting of Peter Denning, Douglas Comer, and Paul McNabb, was responsible for designing and building the kernel interfaces that would allow sites outside of the ARPANET infrastructure to connect via public [[X.25]] networks, such as [[Telenet]]. The mechanism allowed systems with TCP/IP network stacks to use an X.25 network device, with IP datagrams being sent through dynamically allocated X.25 sessions. Purdue and other sites with ARPANET access would act as gateways into the ARPANET, allowing non-ARPANet sites to have email, telnet, ftp, and other forms of network access directly into the ARPANET.
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==Recognition==
==Recognition==
At the July 2009 [[Internet Engineering Task Force]] meeting in [[Stockholm]], [[Sweden]], the [[Internet Society]] recognized the pioneering contribution of CSNET by honoring it with the [[Jonathan B. Postel Service Award]]. Crocker accepted the award on behalf of Landweber and the other [[principal investigator]]s.<ref name="isoc">{{Cite news |title= Trailblazing CSNET Network Receives 2009 Jonathan B. Postel Service Award |date= July 29, 2009 |work= News release |publisher= Internet Society |url= http://isoc.org/wp/newsletter/?p=1098 |accessdate= September 30, 2011 }}</ref> A recording of the award presentation and acceptance is available.<ref>{{Cite web |title= Postel Award to CSNET |author= Lynn St. Amour, Dave Crocker |date= July 29, 2009 |work= Audio recording |url= http://bbiw.net/misc/IETF75-ISOC-Postel-CSNet.mp3 |accessdate= September 30, 2011 }}</ref>
At the July 2009 [[Internet Engineering Task Force]] meeting in [[Stockholm]], [[Sweden]], the [[Internet Society]] recognized the pioneering contribution of CSNET by honoring it with the [[Jonathan B. Postel Service Award]]. Crocker accepted the award on behalf of Landweber and the other [[principal investigator]]s.<ref name="isoc">{{Cite news |title= Trailblazing CSNET Network Receives 2009 Jonathan B. Postel Service Award |date= July 29, 2009 |work= News release |publisher= Internet Society |url= http://isoc.org/wp/newsletter/?p=1098 |accessdate= September 30, 2011 }}</ref> A recording of the award presentation and acceptance is available.<ref>{{Cite web |title= Postel Award to CSNET |author= Lynn St. Amour, Dave Crocker |date= July 29, 2009 |work= Audio recording |url= http://bbiw.net/misc/IETF75-ISOC-Postel-CSNet.mp3 |accessdate= September 30, 2011 }}</ref>
==See also==
* [[National Science Foundation Network]]
* [[Timeline of the history of the Internet]]


==References==
==References==
{{Reflist|colwidth=30em}}
{{Reflist}}


==External links==
==External links==
*[http://livinginternet.com/i/ii_csnet.htm Living Internet: CSNet ]
*[http://livinginternet.com/i/ii_csnet.htm Living Internet: CSNet ]
*[http://museum.media.org/eti/RoundThree08.html Exploring the Internet: Round Three, Madison]
*[http://museum.media.org/eti/RoundThree08.html Exploring the Internet: Round Three, Madison]
==See also==
* [[National Science Foundation Network]]


{{American research and education networks}}
{{American research and education networks}}

Latest revision as of 14:58, 26 December 2025

Template:Short description

File:CSNET diagram.png
A diagram for CSNET members in the USA in 1983.

The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States.[1] Its purpose was to extend networking benefits, for computer science departments at academic and research institutions that could not be directly connected to ARPANET, due to funding or authorization limitations. It played a significant role in spreading awareness of, and access to, national networking and was a major milestone on the path to development of the global Internet. CSNET was funded by the National Science Foundation for an initial three-year period from 1981 to 1984.

History

By 1986 about 150 computers connected to ARPANET, and about 2000 computers to the larger Arpa Internet. Membership of ARPANET was restricted to universities and companies with United States Department of Defense contracts. Other commercial, educational, and nonprofit organizations, ineligible for membership, wanted to interchange information with them.[2]

Lawrence Landweber at the University of Wisconsin–Madison prepared the original CSNET proposal, on behalf of a consortium of universities (Georgia Tech, University of Minnesota, University of New Mexico, University of Oklahoma, Purdue University, University of California, Berkeley, University of Utah, University of Virginia, University of Washington, University of Wisconsin, and Yale University). The US National Science Foundation (NSF) requested a review from David J. Farber at the University of Delaware. Farber assigned the task to his graduate student Dave Crocker who was already active in the development of electronic mail.[3] The project was deemed interesting but in need of significant refinement. The proposal eventually gained the support of Vinton Cerf and DARPA. In 1980, the NSF awarded $5 million to launch the network. It was an unusually large project for the NSF at the time.[4] A stipulation for the award of the contract was that the network needed to become self-sufficient by 1986.[1]

The first management team consisted of Landweber (University of Wisconsin), Farber (University of Delaware), Peter J. Denning (Purdue University), Anthony C. Hearn (RAND Corporation), and Bill Kern from the NSF.[5] Once CSNET was fully operational, the systems and ongoing network operations were transferred to a team led by Richard Edmiston[6] at Bolt Beranek and Newman (BBN) of Cambridge, Massachusetts by 1984.[7]

The Purdue team, consisting of Peter Denning, Douglas Comer, and Paul McNabb, was responsible for designing and building the kernel interfaces that would allow sites outside of the ARPANET infrastructure to connect via public X.25 networks, such as Telenet. The mechanism allowed systems with TCP/IP network stacks to use an X.25 network device, with IP datagrams being sent through dynamically allocated X.25 sessions. Purdue and other sites with ARPANET access would act as gateways into the ARPANET, allowing non-ARPANet sites to have email, telnet, ftp, and other forms of network access directly into the ARPANET.

By 1981, three sites were connected: University of Delaware, Princeton University, and Purdue University. By 1982, 24 sites were connected expanding to 84 sites by 1984, including one in Israel. Soon thereafter, connections were established to computer science departments in Australia, Canada, France, Germany, Korea, and Japan. CSNET eventually connected more than 180 institutions,[8] 60% universities, although Template:Asof most members only had email connections. Sites exchanged data via either X.25 or Phonenet, a store and forward protocol.Template:R

One of the earliest experiments in free software distribution on a network, netlib, was available on CSNET.[9]

CSNET was a forerunner of the National Science Foundation Network (NSFNet) which eventually became a backbone of the Internet. CSNET operated autonomously until 1989, when it merged with BITNET to form the Corporation for Research and Educational Networking (CREN). By 1991, the success of the NSFNET and NSF-sponsored regional networks had rendered the CSNET services redundant, and the CSNET network was shut down in October 1991.[10]

Components

The CSNET project had three primary components: an email relaying service (Delaware and RAND), a name service (Wisconsin), and TCP/IP-over-X.25 tunnelling technology (Purdue). Initial access was with email relaying, through gateways at Delaware and RAND, over dial-up telephone or X.29/X.25 terminal emulation. Eventually CSNET access added TCP/IP, including running over X.25.[11]

The email relaying service was called Phonenet, after the telephone-specific channel of the MMDF software developed by Crocker. The CSNET name service allowed manual and automated email address lookup based on various user attributes, such as name, title, or institution.[12] The X.25 tunneling allowed an institution to connect directly to the ARPANET via a commercial X.25 service (Telenet), by which the institution's TCP/IP traffic would be tunneled to a CSNET computer that acted as a relay between the ARPANET and the commercial X.25 networks. CSNET also developed dialup-on-demand (Dialup IP) software to automatically initiate or disconnect SLIP sessions as needed to remote locations.[13] CSNET was developed on Digital Equipment Corporation (DEC) VAX-11 systems using BSD Unix, but it grew to support a variety of hardware and operating system platforms.

Recognition

At the July 2009 Internet Engineering Task Force meeting in Stockholm, Sweden, the Internet Society recognized the pioneering contribution of CSNET by honoring it with the Jonathan B. Postel Service Award. Crocker accepted the award on behalf of Landweber and the other principal investigators.[14] A recording of the award presentation and acceptance is available.[15]

See also

References

<templatestyles src="Reflist/styles.css" />

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  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "Citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "Citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ CSNET History
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ CSNET-CIC Shutdown NoticeScript error: No such module "Unsubst".Template:Cbignore
  11. ↑ Script error: No such module "Citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".
  14. ↑ Script error: No such module "citation/CS1".
  15. ↑ Script error: No such module "citation/CS1".

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External links

Template:American research and education networks

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