Network Control Program (ARPANET)

Network Control Program is the name for the software on the hosts attached to the ARPANET which implemented the protocol suite of the early ARPANET, Network Control Protocol as it later came to be called. (See here for more about the evolution of these names.) The term did not later, usually, include the applications (such as 'User Telnet').

Implementations

Operating System	Status	Site	Machine
ITS	Preserved	MIT	DEC PDP-10
WAITS	Preserved	SAIL	DEC PDP-10
TENEX	Preserved	BBN and many more	DEC PDP-10
TOPS-20	Preserved	Many	DEC PDP-10
Unix V6	Preserved	University of Illinois initially; numerous others later	DEC PDP-11
ELF	Preserved	Many.	DEC PDP-11
NSWIT	Preserved	LLL	DEC PDP-11
RATS	Preserved	LLL	DEC PDP-11
	Unclear (used ELF?)	Hawaii	BCC 500
SEX	Lost	UCLA	SDS Sigma 7
OS/360	?	UCLA	IBM System/360
CP/CMS	?	Lincoln Labs	IBM System/360
TSS/360	?	NASA Ames	IBM System/360
OLS	?	UCSB	IBM System/360
Multics	Maybe	MIT	GE 645, Honeywell 6180
TOPS-10	Maybe	Many	DEC PDP-10
?		London	DEC PDP-9
RSX-11M			DEC PDP-11
ANTS			DEC PDP-11
		Harvard	DEC PDP-1
Exec III		BBN	DEC PDP-1D
4.1BSD		BBN	DEC VAX
VMS			DEC VAX
APEX	?	Lincoln Labs	TX-2
SCOPE	?		CDC 6600, 7600
Aleph (Rochester's Intelligent Gateway)	Lost	University of Rochester	DG Eclipse
Keydata DMS		ARPA	PDP-15
POSIX	In progress	Emulation

External links

• SRI-NOSC - complete UNIX NCP source
  • Illinois NCP Documentation