Difference between revisions of "IMP interface"
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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]]. | ||
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* ABSI, used by [[Honeywell 6000 series|6180]] Multics, for NCP and [[Internet Protocol|IP]] | * ABSI, used by [[Honeywell 6000 series|6180]] Multics, for NCP and [[Internet Protocol|IP]] | ||
* [[Alto-1822 Interface]] for the [[Xerox Alto|Alto]], used in a variety of ways | * [[Alto-1822 Interface]] for the [[Xerox Alto|Alto]], used in a variety of ways | ||
| − | * [[Data General Nova]] interface: done at [[Xerox PARC]], apparently at least two, almost certainly one for [[Maxc]]1's [[front end]] | + | * [[Data General Nova]] interface: done at [[Xerox PARC]], apparently at least two, almost certainly two: one for [[Maxc]]1's [[front end]] and another for the Portola PUP gateway |
| + | * The USCB IMP interface, first for their [[IBM System/360|360/75]], later sold to other institutions. | ||
but there were many others (many being 'one-off' local creations). | but there were many others (many being 'one-off' local creations). | ||
Latest revision as of 13:44, 15 January 2025
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 two: one for Maxc1's front end and another for the Portola PUP gateway
- The USCB IMP interface, first for their 360/75, later sold to other institutions.
but there were many others (many being 'one-off' local creations).
