KD10 Architectural Design Specification

This document, dated 18 July 1983, details the design of the KD10, an upgraded PDP-10 processor based on the KS10 architecture. The goal of the project was to create a cost-effective, high-performance system for the distributed computing environment, maintaining compatibility with existing PDP-10 software while integrating improvements from the Jupiter project. The specification covers the system's architecture, including 30-bit extended addressing, hardware modifications, memory controller, I/O structure, and console design, as well as the software environment and required changes for monitoring and diagnostic tools.