You should specify Mac OS 9 when you say OS9. As soon as you said OS9, I thought you meant, well, OS9. OS9 definitely had pre-emptive multitasking about a hun

You should specify Mac OS 9 when you say OS9. As soon as you said OS9, I thought you meant, well, OS9. OS9 definitely had pre-emptive multitasking about a hundred million years ago.