A brief history of how Control-Alt-Delete came to be:
Gates has admitted what quite a few Windows users have been thinking for a long time that pressing these three keys simultaneously, rather than a single key, has been an unnecessary mechanism all these years.
He said that pressing these keys, which allows users to log in to Windows and access the task manager (you may be most familiar with it as the first step in rebooting), was conceived after an IBM keyboard designer wouldn't give him a single button to perform the same chore.
Mr. Gates said “we could have had a single button, but the guy who did the IBM keyboard design didn't want to give us our single button" Gates said.
So Gates blames an IBM keyboard designer for this unnecessary mechanism that lived on through generation after generation of Windows.
Who does Gates blame for the numerous bugs that infected generation after generation of Windows operating systems? He can’t blame that on an IBM keyboard designer!