Difference between revisions of "IMP interface"
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* [[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]] |
* 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 | ||
Revision as of 23:35, 4 June 2022
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
- 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
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
