#REDIRECT [[Network Control Protocol (ARPANET)#Network Control Program]]
'''Network Control Program''' (usually given as '''NCP''') was the name for the software on [[host (network)|hosts]] which implemented the [[Network Control Protocol (ARPANET)|Network Control Protocol]] of the [[ARPANET]].<ref name="NCPOrigin">{{Cite IETF|rfc=33|title=New HOST-HOST Protocol|access-date=2022-08-04}}</ref>
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It was almost universally referred to by the acronym, NCP. This was later taken over to refer to the [[protocol stack|protocol suite]] itself.<ref name="NCPReuse1">{{Cite web|url=http://www.postel.org/ien/pdf/ien011.pdf|title=Internetting or Beyond NCP|access-date=2022-08-04}}</ref><ref name="NCPReuse2">{{Cite IETF|ien=18|title=Proposed Revisions to the TCP|url=https://www.rfc-editor.org/ien/ien18.pdf|access-date=2022-08-04}}</ref>
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NCP's were written for many [[operating system]]s, including [[Multics]], [[TENEX (operating system)|TENEX]], [[Unix|UNIX]] and [[TOPS-10]], and many of those NCP's survive (although of course they are now only used by vintage computer enthusiasts).
==External links==
* [https://gunkies.org/wiki/Network_Control_Program_(ARPANET) Network Control Program] - NCP details at the Computer History Wiki
