Difference between revisions of "PDP-11/40"

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The OEM version of the 11/40 is the 11/35.  A special 11/40 with a blue front panel was used as the front-end for the KL-10 in DECSystem-10s and DECSystem-20s---though the 11/40 panel was hidden behind a cabinet door on the 20.
 
The OEM version of the 11/40 is the 11/35.  A special 11/40 with a blue front panel was used as the front-end for the KL-10 in DECSystem-10s and DECSystem-20s---though the 11/40 panel was hidden behind a cabinet door on the 20.
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The 11/40 was also the primary platform for early [[UNIX]].
  
 
{{Infobox Machine
 
{{Infobox Machine

Revision as of 23:43, 15 November 2010

The PDP-11/40, introduced in 1973, was the first machine to introduce 18-bit memory addressing on the PDP-11 platform.

The OEM version of the 11/40 is the 11/35. A special 11/40 with a blue front panel was used as the front-end for the KL-10 in DECSystem-10s and DECSystem-20s---though the 11/40 panel was hidden behind a cabinet door on the 20.

The 11/40 was also the primary platform for early UNIX.


PDP-11/40
Pdp-11-40.jpg
PDP-11/40 with TU56 dual DECtape drive.
Manufacturer: Digital Equipment Corporation
Word Size: 16 bit
Physical Address Size: 18 bit
Virtual Address Size: 16 bit
Bus Architecture: UNIBUS