[tpmoney]

Interestingly, Apple's HIG generally suggest avoiding "Ok" in favor of an action describing what will happen. So save dialogs say "Save" not "OK". The empty trash dialog says "Empty Trash". Still I guess that's more clear than "Do It"

[linguae]

This change most likely happened sometime in the early 1990s, though it’s possible it could’ve happened in the late 1980s. I have a PDF copy of the Macintosh Human Interface Guidelines from 1995 that recommends descriptive button text instead of “OK” and “Cancel.”