Editing Packet switching (section)

====CSNET====
The [[Computer Science Network]] (CSNET) was a computer network funded by the NSF that began operation in 1981. 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 the development of the global [[Internet]].<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 |access-date= September 30, 2011 |url-status= dead |archive-url= https://web.archive.org/web/20110828125922/https://www.nsf.gov/about/history/nsf0050/internet/modest.htm |archive-date= August 28, 2011 }}</ref><ref>{{Cite journal |title= History and overview of CSNET |author= Douglas Comer |journal= Communications |date= October 1983 |volume= 26 |number= 10 |doi= 10.1145/358413.358423 |pages=747–753|s2cid= 11943330 |author-link= Douglas Comer |doi-access= free }}</ref>