Etos Version 5b System

This document is the preface and introductory material for the ETOS Version 5B System User's Guide. It serves as a foundational manual for users operating within the ETOS environment, providing basic instructions for system use and referencing useful appendices, which include a glossary, a list of SCALE commands, error messages, and a demonstration run. The document also includes copyright information held by the QUODATA Corporation, dating from 1974 to 1979.