Another dead language is FPL, Foxboro Process Language. It was a BASIC-like
multitasking/scheduling monitor for data acquisition and real time control that ran on the
PDP-11/15 in 1973. I scanned this sales brochure that describes the flavour of it:
https://archive.org/details/fox210minisystem
When I recovered the FOX system I found some paper tapes which I dumped a few years ago.
Unfortunately no FOXBORO labelled ones with the FPL development system per se, but one of
them was a complete 28KW core dump of the running system that quite possibly has the FPL
kernel along with the steelworks oxygen plant monitoring application on it. I've not
looked at it since then though, would be better left for someone who can knowledgeably
analyse them and see if there's anything interesting.