disgrunted yank - PDP-11 Assembler would be MACRO-11. "C" would be a higher level language.
I wrote code for RSX-11m on PDPs for a bit over a decade. If you need a system that only needs to be rebooted on disk failure or power outage, the PDP was near the top of the list. Y2K killed off the last of the data center dinosaurs I herded.