Difference between revisions of "IMP interface"

From Computer History Wiki
Jump to: navigation, search
m (External links: +Manual for the IMP-10 Special Interface)
 
(24 intermediate revisions by 2 users not shown)
Line 1: Line 1:
A device attached to an [[ARPANET]] host to communicate with an [[IMP]].  The communication interface is specified in BBN Report 1822.
+
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]].  
  
List of interfaces:
+
Some of the most popular IMP interfaces were:
  
* BBN IMP-10, used by TENEX.
+
* BBN IMP-10, used by [[TENEX]]
* MIT DM IMP, used by MIT-DMS. Made by Bob Metcalfe.
+
* MIT DM IMP, used by [[Incompatible Timesharing System|MIT-DM]]. Made by Bob Metcalfe
* MIT KA IMP, used by MIT-AI, ML, and MC.
+
* MIT KA IMP, used by [[Incompatible Timesharing System|MIT-AI, -ML, and -MC]]
* ACC LH/DH, Unibus.
+
* [[Digital Equipment Corporation|DEC]] AN-10, for the [[PDP-10 I/O Bus]]
* CSS IMP11-A, Unibus.
+
* DEC CSS [[IMP11-A ARPANET interface|IMP11-A]], [[UNIBUS]]
* SRI DR11C, Unibus.
+
* DEC CSS [[IMP11-B ARPANET Interface|IMP11-B]], UNIBUS
* GIMPSPIF, used by 645 Multics.
+
* [[ANTS/ISI IMP Interface]], UNIBUS
* ABSI, used by 6180 Multics.
+
* [[Stanford 1822 Interface]], UNIBUS (via a [[DR11-C parallel interface|DR11-C]]) and [[QBUS]] (via a [[DRV11 Parallel Line Unit|DRV11]])
 +
* [[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
 +
* GIMPSPIF, used by 645 [[Multics]]
 +
* 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
  
{{stub}}
+
but there were many others (many being 'one-off' local creations).
 +
 
 +
{{semi-stub}}
 +
 
 +
==External links==
 +
 
 +
* [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/IMP-10_Special_Interface_Manual_Oct73.pdf Manual for the IMP-10 Special Interface]
 +
 
 +
[[Category: 1822 Interfaces‎]]

Latest revision as of 20:39, 17 December 2023

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:

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

External links