Difference between revisions of "PDP-11/34A"

From Computer History Wiki
Jump to: navigation, search
(Mdntion backplane, +ext link)
m (External links: +Maintenance Card)
Line 7: Line 7:
 
==External links==
 
==External links==
  
 +
* [http://www.vaxhaven.com/images/8/84/EK-11034-MC-003.pdf PDP-11/04/34/34A Maintenance Card] (EK-11034-MC-003)
 
* [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview]
 
* [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview]
  

Revision as of 14:08, 22 February 2022

The PDP-11/34A is the version of the PDP-11/34 with the upgraded KD11-EA CPU needed to supported the optional FP11-A floating point unit and/or the KK11-A cache.

A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two hex boards of the KD11-E CPU. Since the DD11-P backplane of the -11/34 was not modified, if the cache or floating point boards were added, it used a baroque system of special over the top (OTT) connectors to join up one or both to the rest of the CPU.

External links