Network Control Program (ARPANET)

Network Control Program (usually given as NCP) was the name for the software on hosts which implemented the Network Control Protocol of the ARPANET.[1][2]

Main article: Network Control Protocol (ARPANET)

It was almost universally referred to by the acronym, NCP. This was later taken over to refer to the protocol suite itself.[3][4]

NCP's were written for many operating systems, including Multics, TENEX, UNIX and TOPS-10, and many of those NCP's survive (although of course they are now only used by vintage computer enthusiasts).

References
  1. New HOST-HOST Protocol. doi:10.17487/RFC0033. RFC 33. Retrieved 2022-08-04.
  2. Reynolds, J.; Postel, J. (1987). The Request For Comments Reference Guide. doi:10.17487/RFC1000. RFC 1000. Over the next few months we designed a symmetric host-host protocol, and we defined an abstract implementation of the protocol known as the Network Control Program. ("NCP" later came to be used as the name for the protocol, but it originally meant the program within the operating system that managed connections. The protocol itself was known blandly only as the host-host protocol.)
  3. "Internetting or Beyond NCP" (PDF). Retrieved 2022-08-04.
  4. Proposed Revisions to the TCP (PDF). IEN 18. Retrieved 2022-08-04.
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