BASIC User's Guide

This user guide provides a comprehensive overview of BASIC programming for PDP-11 and VAX systems. It covers the fundamental elements of BASIC programs, including syntax, variables, data types, constants, and operators. The manual details input and output operations, program control structures (loops, branching, subroutines), string manipulation functions, array handling, and advanced data definition techniques. Additionally, it addresses file I/O using RMS files, compiler directives for program listing and compilation control, and robust error handling routines for run-time management.