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    Information Research Services Updated: 19 August 1997
         
     
           
        The central processors for the PDP-11/05 and 11/10 were identical. The 11/05 was offered for the Original Equipment Manufacturer, while the 11/10 was designed for the end user. Both machines offered features not available on the earlier PDP-11/20, such as 4-level priority interrupt and multiple accumulators.