RSX-20F Jan80

This document is the "TOPS-10/TOPS-20 RSX-20F System Reference Manual" (AA-H352A-TK), published in January 1980.

It describes RSX-20F, an operating system designed to run on the PDP-11/40 front-end processor of KL-based computers. RSX-20F's primary functions include:

• Loading KL microcode.
• Configuring main and cache memory.
• Loading the boot program.
• Performing diagnostics.
• Providing device handling for unit record equipment on systems running TOPS-20 and 1091 systems.