[throwawayboise]

COBOL is another one. COBOL programs written decades ago are still running unchanged on mainframes today. (Not that it was ever used for scientific computing.)

[the_only_law]

I recall reading on HN a while back that a modern z/OS mainframe can run unmodified System/360 binaries.

[gnufx]

Well, there was the shocking news here not long ago that some OS\360(?) backwards compatibility had been dropped. What's the world coming to.

Relevant to Fortran, there's a version of ESSL that I recall on OS\370 now for POWER9 (and doubtless 10). Scientific subroutine libraries are arguably the best example of the re-use beloved of those who haven't seen their OOP code last decades.

[1996]

wine can also run unmodified windows binaries

[the_only_law]

Yes and if those windows binaries were from a platform from over 50 years ago then perhaps your snarky quips would come off as intelligent.

[1996]

Windows 3.1, released on April 6, 1992 - so only 29 years old.

My bad, the 21 years difference must be important (somehow?)