IMP interface: Difference between revisions
From Computer History Wiki
Jump to navigationJump to search
link 1822 |
Use in PRUs, Alto 1822 interface |
||
| Line 1: | Line 1: | ||
An '''IMP interface''' is a [[peripheral|device]] | An '''IMP interface''' is a [[peripheral|device]] used to attach [[host]]s 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]], and later the PRUs of the [[Packet Radio Network]]. | ||
List of some of the most popular interfaces: | List of some of the most popular interfaces: | ||
| Line 11: | Line 11: | ||
* [[Advanced Computer Communications|ACC]] [[LH-DH/11 Local/Distant Host Controller|LH-DH/11]], UNIBUS | * [[Advanced Computer Communications|ACC]] [[LH-DH/11 Local/Distant Host Controller|LH-DH/11]], UNIBUS | ||
* ACC [[MLH-DH/LSI11 Multiple Channel Controller|MLH-DH/LSI11]], QBUS | * ACC [[MLH-DH/LSI11 Multiple Channel Controller|MLH-DH/LSI11]], QBUS | ||
* GIMPSPIF, used by 645 [[Multics]] | * GIMPSPIF, used by 645 [[Multics]] for [[Network Control Program|NCP]] | ||
* ABSI, used by [[Honeywell 6000 series|6180]] Multics | * ABSI, used by [[Honeywell 6000 series|6180]] Multics or NCP and [[Internet Protocol|IP]] | ||
* [[Xerox Alto|Alto]] interface, used on the [[Maxc|Maxc2]] [[front end]] to connect to the [[ARPANET]] for , on [[PARC Universal Packet|PUP]] [[router|gateways]] to talk to [[Packet Radio Network|PRUs]], and apparently eventually on the Alto ARPANET IP gateway | |||
but there were many others (many being 'one-off' local creations). | but there were many others (many being 'one-off' local creations). | ||
| Line 21: | Line 22: | ||
* [http://www.bitsavers.org/pdf/bbn/imp/BBN1822_Jan1976.pdf Specification for the Interconnection of a Host and an IMP] - BBN Report #1822 | * [http://www.bitsavers.org/pdf/bbn/imp/BBN1822_Jan1976.pdf Specification for the Interconnection of a Host and an IMP] - BBN Report #1822 | ||
* [https://xeroxalto.computerhistory.org/Indigo/Alto-1822/.index.html Alto 1822 code] | |||
[[Category: Network Interfaces]] | [[Category: Network Interfaces]] | ||
Revision as of 14:47, 4 November 2021
An IMP interface is a device used to attach hosts to systems which used the special 1822 communication interface (defined in BBN Report No. 1822); these included initially the IMPs of the ARPANET, and later the PRUs of the Packet Radio Network.
List of some of the most popular interfaces:
- 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
- DEC CSS IMP11-A, 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 for NCP
- ABSI, used by 6180 Multics or NCP and IP
- Alto interface, used on the Maxc2 front end to connect to the ARPANET for , on PUP gateways to talk to PRUs, and apparently eventually on the Alto ARPANET IP gateway
but there were many others (many being 'one-off' local creations).
External links
- Specification for the Interconnection of a Host and an IMP - BBN Report #1822
- Alto 1822 code
