23 years of compatibility and Apple can't even manage half a decade before dumping an OS and dumping compatibility modes. But what I find funny is that Apple has a closed hardware system and can't even manage that. Should have it easier than M$.
They are kinda opposites. M$ is good with software compatibility in the long run but can't make hardware worth a darn. Apple...makes machines designed to last a long time, well...they used to, but discontinues software as soon as possible.
"We tried to help Intel, but they don’t listen much. We’ve been telling them for years that their graphics suck…" -Steve Jobs