At a recent fundraiser at Harvard, Microsoft co-founder
Bill Gates, admits that the keyboard shortcut Ctrl-Alt-Del was "a mistake." One button would have done the trick.
Thanks Bill. We appreciate the update.
But, wait. He pasted the blame on to the guy from IBM who designed the keyboard who has confessed to the thoughtlessness. Thanks IBM.
So to conclude, it was "a mistake" - not a bug or a feature.