PDP-11 Picture Book

This document describes the PDP-11 Picture Book, a software package designed for interactive use between a RSTS/E or RSX-11D host system and a GT40 or GT42 graphics display terminal. The software includes a down-line loader, a communications and display file handler for the terminal, and graphics subroutines for FORTRAN (RSX-11D) or functions for BASIC (RSTS/E). The document outlines its functional capabilities, such as drawing, light pen handling, and display modification, alongside hardware requirements and ordering information.