In article <20101201052344.B4CD3A580D3 at yagi.h-net.msu.edu>,
Dennis Boone <drb at msu.edu> writes:
PRIMOS was written primarily in FORTRAN, [...]
Didn't know about that one.
Multics was primarily in PL/1.
Nor this one.
IIRC there was something earlier written in BCPL.
I'd forgotten that AmigaOS was written in BCPL.
For current systems, z/VM has substantial amounts of
PL/S or its
descendants, [...]
Didn't know about this one either, mostly because I blissfully remain
ignorant of IBM equipment :-)
Depending on your definitions, things like the Forth
in Sun ROMs might
be counted.
I did mention FORTH.
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