ARPANET Interface Message Processor platform

E28280

The ARPANET Interface Message Processor platform was the specialized packet-switching computer system that formed the backbone of the early ARPANET, handling data routing between host machines in the first large-scale packet-switched network.


Statements (44)
Predicate Object
instanceOf networking hardware platform
packet-switching computer system
alsoKnownAs IMP platform
Interface Message Processor system
architecture store-and-forward packet switching network node
basedOn Honeywell 316 minicomputer
Honeywell DDP-516 minicomputer
connects host computers
other Interface Message Processors
connectsVia 56 kbit/s leased telephone lines
developedBy BBN Technologies
Bolt Beranek and Newman
developedFor ARPANET
documentedIn BBN Report 1822
firstDeployedAt Stanford Research Institute
UC Santa Barbara
UCLA
University of Utah
function data routing between host computers
error control for ARPANET links
flow control for ARPANET traffic
store-and-forward packet switching
governedBy ARPANET Network Measurement Center policies
hadComponent communication line interfaces
core memory
front-panel console
host interface ports
implemented congestion control mechanisms
routing algorithms for ARPANET
influenced design of military packet-switched networks
later packet-switching router designs
introduced 1969
locationCountry United States
partOf ARPANET
provided reliable communication over unreliable lines
role backbone switching node of ARPANET
interface between host computers and ARPANET communication lines
shielded host computers from network details
successor Packet Switch Node platform
use packet switching
usedIn early Internet research
usedOperatingSystem custom real-time executive
usedProtocol NCP
Network Control Program

Referenced by (1)
Subject (surface form when different) Predicate
Honeywell DDP-516
usedAs

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