A Real-Time Multiple Task Executive Program for PDP-8/S and PDP-8 Computers

This document outlines a real-time executive program designed for PDP-8 and PDP-8/S computers, developed at Oak Ridge National Laboratory. The executive facilitates the scheduling of multiple process-control tasks and establishes priorities using an interrupt-driven mechanism. Key features include a built-in console utility package for system management, real-time clock synchronization, and a robust status-tracking system that manages task execution, I/O functions, and interrupt handling. The document also provides technical details on memory requirements, register management, interrupt handlers, and instructions for operating the system, including loading tasks and using the command-line utility.