Difference between revisions of "PDP-11/73"

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[[Image:pdp11-73.jpg|150px|thumb|right|PDP-11/73]]
 
[[Image:pdp11-73.jpg|150px|thumb|right|PDP-11/73]]
  
Confusingly, the CPU board is the [[KDJ11-B]] (M8190), the same as the [[PDP-11/83]] - no DEC '11/xx' system seems to use the earlier [[KDJ11-A]] (M8192).
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Confusingly, the CPU board is the [[KDJ11-B]] (M8190), the same as the [[PDP-11/83]] - no DEC '11/xx' system seems to use the earlier [[KDJ11-A]] (M8192). (The 'Microcomputer Products Handbook' does refer to the KDJ11-A as the "LSI-11/73 microcomputer", however.)
  
 
== hampage.hu ==
 
== hampage.hu ==
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There was no UNIBUS equivalent.
 
There was no UNIBUS equivalent.
  
The [[J-11]] was manufactured by Harris Semiconductors, and it hasn't been fully completed, it lacked the WCS and CIS options.  
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The J-11 was manufactured by Harris Semiconductors, and it hasn't been fully completed, it lacked the WCS and CIS options.  
  
 
A very popular enclosure is displayed to the left: this was the BA23 standing tower configuration, that had place for a 8x4 backplane, an [[RX50]] floppy or [[TK50]] streaming tape drive and an RDxx harddisk. The BA23 could also be rack-mounted.
 
A very popular enclosure is displayed to the left: this was the BA23 standing tower configuration, that had place for a 8x4 backplane, an [[RX50]] floppy or [[TK50]] streaming tape drive and an RDxx harddisk. The BA23 could also be rack-mounted.
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{{PDP-11}}
 
{{PDP-11}}
  
[[Category:QBUS processors]]
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[[Category: QBUS PDP-11s]]

Latest revision as of 17:36, 17 February 2018

PDP-11/73

Confusingly, the CPU board is the KDJ11-B (M8190), the same as the PDP-11/83 - no DEC '11/xx' system seems to use the earlier KDJ11-A (M8192). (The 'Microcomputer Products Handbook' does refer to the KDJ11-A as the "LSI-11/73 microcomputer", however.)

hampage.hu

Quoting:

PDP-11/73

Introduced in 1984. Successor of the PDP-11/23. At that time the components were VLSI, and these PDP-11's were marketed as MicroPDP's (this has in fact begun with the PDP-11/23). The PDP-11/73 had a 15MHz J-11 chip set-based CPU with 22-bit memory management for the 4MB RAM max. Just to make life more complicated, 18 MHz PDP-11/83 CPU boards can also be found in PDP-11/73 systems, as a PDP-11/83 CPU (M8190-A[DE]) with QBUS memory (instead of the PMI memory used in those systems) is called a PDP-/73...

There was no UNIBUS equivalent.

The J-11 was manufactured by Harris Semiconductors, and it hasn't been fully completed, it lacked the WCS and CIS options.

A very popular enclosure is displayed to the left: this was the BA23 standing tower configuration, that had place for a 8x4 backplane, an RX50 floppy or TK50 streaming tape drive and an RDxx harddisk. The BA23 could also be rack-mounted.