Update to DECUS PDP-8, FOCAL8, BASIC8, PDP-12 Catalog

This document is the May 1975 update to Volume II of the DECUS (Digital Equipment Computer Users Society) Catalog. It provides general information regarding payments, service charges for write-ups and library tapes (including DECtape, LINCtape, and Magtape), and comprehensive category indexes for software categorized by PDP-8, FOCAL8, BASIC8, and PDP-12 systems. Detailed service charge tables and program descriptions are included for various utilities, programming languages, and applications.