RSX-20F System Reference Manual

This reference manual describes the RSX-20F front-end operating system, which runs on the PDP-11/40 processor to support KL-based computer systems running TOPS-10 or TOPS-20. The document covers system overview, software components (including the PARSER command processor and KLINIT initialization program), system internals, error detection, and logging. It also provides detailed appendices for stop codes, I/O error codes, file transfer procedures, and task descriptions.