This directory contains subdirectories with various types of PDP-10 stuff. info Papers etc. on PDP-10 topics. its Files and instructions for creating KS10 boot tapes for the Incompatible Timesharing System on a non-PDP10 host. ks10 Stuff related directly to the KS10 processor (DECSYSTEM-2020). tops10 Stuff that runs under TOPS-10. tops20 Unfinished FORTH for TOPS-20, and the Utah READ20 program for UNIX.