Early timesharing/BBS systems

This is an area I'm working on in trying to bring some of these systems back to life through simulation. MIT had a timeharing PDP-1 system, as well as CTSS on a modified 7090 in the early 60's. BBN also had timesharing on a PDP-1. CTSS's replacement was Multics. UC Berkeley modified an SDS 930 to add memory protection and developed the GENIE timesharing system in the mid 60's. SDS sold the 940, as the modified 930 was called with modified versions of the GENIE software. The most well known 940 systems were at SRI (which eventually was sold to the folks who did the Community Memory Project), BBN, and Tymshare. Tymshare migrated from their 940s to DEC10's in the 70's. The people who did the 940 at UCB started Berkeley Computer Corporation and produced one prototype of their BCC500 system, which was moved to the University of Hawaii after BCC folded, and many of the people formed the core of the computer group at PARC. Dartmouth produced their BASIC timesharing system in the mid 60's, about the same time as GENIE. IBM produced TSS-360, the less said about that, the better.. DEC timesharing monitors for the PDP-6 evolved into the timesharing monitor on the PDP-10, which later became TOPS-10. BBN's TENEX operating system for the PDP-10 later became TOPS-20. Smallish timesharing systems were also produced which included TSS/8 for the PDP-8, which was inspired by a phd thesis Gordon Bell supervised at CMU, which sort of evolved into RSTS (originally called EDUSYSTEM 100) and RSTS/E.