Difference between revisions of "PDP-11/40"

From Computer History Wiki
Jump to: navigation, search
Line 1: Line 1:
 
The PDP-11/40, introduced in 1973, was the first machine to introduce 18-bit memory addressing on the PDP-11 platform.
 
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.  The 11/40 with a blue front panel was also used as the front-end for the KL-10.
+
The OEM version of the 11/40 is the 11/35.  A special 11/40 with a blue front panel also 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.
  
 
{{Infobox Machine
 
{{Infobox Machine

Revision as of 05:39, 7 February 2009

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 also 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.


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