This directory contains courseware for the lecture Operating Systems at the Berufsakademie Stuttgart. It was based on 6th Edition Unix and was taught by Wolfgang Helbig . He writes: My site at the ba-stuttgart was removed. It hosted courseware for my unix v6 lecture. This includes: Unix Programmer's Manual (aka man pages) Documents for use with the Unix Time-Sharing System prepared as postscript files. I provided the man pages as HTML-pages with the references replaced by links. The lecture notes contain tips for installing v6 on the simh emulator, a description of the pdp11 instruction set and hardware as well as a description of unix v6, including booting, kernel and user land software.