Edusystem Handbook

This document is a comprehensive technical handbook for the Digital Equipment Corporation (DEC) Edusystem series, which includes the Edusystem 5, 10, 15, 20, 25, 30, 40, and 50. It serves as both a user's guide and a self-instruction manual for the BASIC programming language as implemented on these systems.

Key sections of the handbook include:

• Foreword: Discusses the educational value and motivational impact of using computers in the classroom.
• Introduction: Provides an overview of the Edusystem line as a modular, expandable, and compact computer solution for schools, utilizing the PDP-8/E computer.
• Teach Yourself BASIC: A detailed tutorial covering BASIC syntax, input/output (PRINT, INPUT, READ, DATA), loops, subroutines, logic (IF-THEN, GOTO), functions (INT, SQR), and advanced string handling.
• System-Specific Chapters: Individual chapters (2 through 9) provide detailed operating, loading, and maintenance instructions for specific Edusystem configurations, along with their respective BASIC command summaries and error diagnostics.
• Advanced Topics: Covers batch processing (card programs), monitoring, and utility programs like the Symbolic Editor, Assembler (PAL-D), and Peripheral Interchange Program (PIP).
• EduTest: A specialized appendix dedicated to the EduTest system, a software package for grading and analyzing student test responses using optical mark cards.
• Appendices and Index: Includes reference material such as character codes, error message summaries, a glossary, and a comprehensive index for quick navigation.