KS10-Based DECsystem-2020

This document is a technical manual for the KS10-based DECsystem-2020, intended for field service personnel. It provides an introduction to the KS10 processor design, which uses microprogrammed architecture with low power LS/TTL circuitry. The manual covers physical description, site preparation, installation, and operation. A significant portion of the document is dedicated to the processor's technical description, detailing organization and timing, the KS10 bus, the microcontroller, data path execution, memory subsystems, and the Unibus adapter. Detailed information on console commands and diagnostic indicators is included to support system operation and maintenance.