Difference between revisions of "IMP interface"

Revision as of 13:14, 15 January 2025

IMP interfaces for IBM S/360

An IMP interface is a device controller used on a host (i.e. on its bus) to attach them to systems which used the special 1822 communication interface (defined in BBN Report No. 1822); these included initially the IMPs of the ARPANET (hence the name), and later the PRUs of the Packet Radio Network‎.

Some of the most popular IMP interfaces were:

BBN IMP-10, used by TENEX
MIT DM IMP, used by MIT-DM. Made by Bob Metcalfe
MIT KA IMP, used by MIT-AI, -ML, and -MC
DEC AN-10, for the PDP-10 I/O Bus
DEC CSS IMP11-A, UNIBUS
DEC CSS IMP11-B, UNIBUS
ANTS/ISI IMP Interface, UNIBUS
Stanford 1822 Interface, UNIBUS (via a DR11-C) and QBUS (via a DRV11)
ACC LH-DH/11, UNIBUS
ACC MLH-DH/LSI11, QBUS
GIMPSPIF, used by 645 Multics
ABSI, used by 6180 Multics, for NCP and IP
Alto-1822 Interface for the Alto, used in a variety of ways
Data General Nova interface: done at Xerox PARC, apparently at least two, almost certainly one for Maxc1's front end

but there were many others (many being 'one-off' local creations).

This article is not as complete coverage of the topic as it could be. You can help by expanding it.

Revision as of 20:59, 6 January 2025 (view source) Jnc (talk \| contribs) (Add Nova interface) ← Older edit		Revision as of 13:14, 15 January 2025 (view source) Larsbrinkhoff (talk \| contribs) (List of IMP interfaces for IBM S/360, per December 1974 or January 1975?) Newer edit →
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	An '''IMP interface''' is a [[device controller]] used on a [[host]] (i.e. on its [[bus]]) to attach them to systems which used the special [[1822 interface\|1822 communication interface]] (defined in [[Bolt, Beranek, and Newman\|BBN]] Report No. 1822); these included initially the [[Interface Message Processor\|IMPs]] of the [[ARPANET]] (hence the name), and later the PRUs of the [[Packet Radio Network‎]].		An '''IMP interface''' is a [[device controller]] used on a [[host]] (i.e. on its [[bus]]) to attach them to systems which used the special [[1822 interface\|1822 communication interface]] (defined in [[Bolt, Beranek, and Newman\|BBN]] Report No. 1822); these included initially the [[Interface Message Processor\|IMPs]] of the [[ARPANET]] (hence the name), and later the PRUs of the [[Packet Radio Network‎]].