Editing Packet switching (section)

====RETD====
Red Especial de Transmisión de Datos (RETD) was a network developed by [[Compañía Telefónica Nacional de España]]. It became operational in 1972 and thus was the first public network.<ref>{{cite conference |first= G. |last= Alarcia |author2= Herrera, S. |title= C.T.N.E.'s PACKET SWITCHING NETWORK. ITS APPLICATIONS |book-title= Proceedings of 2nd ICCC 74 |pages= 163–170 |year= 1974 |url= http://rogerdmoore.ca/PS/CTNEA/CTA.html |conference=  |access-date= 2013-08-30 |archive-date= 2013-10-20 |archive-url= https://web.archive.org/web/20131020141839/http://rogerdmoore.ca/PS/CTNEA/CTA.html |url-status= dead }}</ref><ref>{{cite conference |first= L. |last= Cuenca |title= A Public Packet Switching Data Communications Network: Eight Years of Operating Experience |book-title= Conference Record of ICC 80 |pages= 39.3.1–39.3.5 |publisher= IEEE |year= 1980 |url= http://rogerdmoore.ca/PS/CTNEC1.html |conference=  |access-date= 2013-08-30 |archive-date= 2013-10-20 |archive-url= https://web.archive.org/web/20131020140055/http://rogerdmoore.ca/PS/CTNEC1.html |url-status= dead }}</ref><ref>{{cite conference |first= Luis |last= Lavandera |title= Architecture, Protocols and Performance of RETD |book-title= Conference Record of ICC 80 |pages= 28.4.1–28.4.5 |publisher= IEEE |year= 1980 |url= http://rogerdmoore.ca/PS/RETDB.html |conference=  |access-date= 2013-08-30 |archive-date= 2013-10-20 |archive-url= https://web.archive.org/web/20131020142212/http://rogerdmoore.ca/PS/RETDB.html |url-status= dead }}</ref><ref>{{Cite web |last=Derek Barber |title=The Origins of Packet Switching |url=http://www.cs.man.ac.uk/CCS/res/res05.htm#f |access-date=2024-06-05 |website=Computer Resurrection Issue 5 |quote=The Spanish, dark horses, were the first people to have a public network. They'd got a bank network which they craftily turned into a public network overnight, and beat everybody to the post.}}</ref>