DECsystem-20 and DECsystem-10 Software Components Catalogue

This document is a comprehensive software components catalogue dated October 1976 for Digital Equipment Corporation's DECsystem-10 and DECsystem-20 machines. It provides a detailed list of system software, diagnostic software, and engineering drawings available for these platforms. The catalogue includes indexing by software distribution code and title, along with guidelines for locating and purchasing specific software kits or individual components. It also explains the specific coding system used by Digital Equipment Corporation to identify, revise, and categorize their software products.