After 3 years, I've been able to update the PDP-10 and PDP-11 OS to Layered Products Cross-reference. I ran across a pile of RSTS/E and Micro/RSTS SPD's yesterday. As a result there is now info on Micro/RSTS V2.0 and V2.1, and RSTS/E V9.2-9.6. http://www.aracnet.com/~healyzh/PDP-10_11_OS_xref(V2b).pdf As always, if anyone can provide information to help update this, I'd appreciate it. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |