I'm curious what sort of CPUs and OSes do those languages run on. C++ runs on all sorts of obscure real time OSes, all the standard mainstream ones as well as o

I'm curious what sort of CPUs and OSes do those languages run on. C++ runs on all sorts of obscure real time OSes, all the standard mainstream ones as well as on embedded equipment and various CPUs, but a lot of that is possible because of the variety of compilers.