TOPS-20 KL Model B

This document is an installation and update guide for the TOPS-20 operating system (Version 5.1) on KL10 Model B hardware, published in December 1982. It provides comprehensive, step-by-step instructions for:

• Initial Installation: Preparing the DECSYSTEM-20 hardware, loading the TOPS-20 monitor and file system from floppy disks and magnetic tapes, and running the User Environment Test Package (UETP).
• System Customization: Configuring system defaults such as terminal speeds, logical names, line printer parameters, scheduler controls, and accounting shifts.
• Version Updates: Detailed procedures for updating an existing Version 5.0 system to Version 5.1.
• Batch/Spooling System: Instructions for generating a tailored GALAXY batch and spooling system for specific site requirements.
• Pocket Guide: A condensed version of the installation steps for experienced installers (Appendix B) and procedures for integrating with the ARPA network (Appendix C).

The guide assumes the user has basic familiarity with the DECSYSTEM-20 and includes error recovery procedures for common installation issues.