DECsystem-10 Data Communications Products

This student guide provides comprehensive training material for the DECsystem-10 data communications environment. It covers the following key areas:

• Network Concepts: An introduction to network definitions, topologies, and an overview of communications products like the DN80 and DN87 series.
• Protocols: In-depth coverage of DDCMP, NCL, and their message formats.
• Network Usage: How to use network monitor commands (e.g., ASSIGN, SET HOST, LOCATE) and monitor calls (UUO's).
• Intertask Communication: Procedures for transferring files and data between tasks on various nodes.
• TOPS-10 Network Internals: A detailed breakdown of the TOPS-10 monitor modules (e.g., NETSER, TSKSER, D85INT) that handle networking.
• DN80 Series Internals: Data structures and flow charts for internal tasks on the DN80 series hardware.
• Installation and Debugging: Procedures for assembling and loading network software, as well as using DDT11 and CHK11 for diagnostics.

The document is organized into modules with associated objectives and tests, serving as a primary reference for software specialists working with DECsystem-10 communications.