Back then i was so amazed i could "destroy" MS-DOS just by typing CTTY CLOCK$. Or Window 98 just by executing /CON/CON

Are these the MSFT equivalent of `rm -R` [delete everything on your linux box]?

You would need to be root to delete (close to) everything, but I guess the most valuable stuff is typically in one's home folder anyway.

More like kernel panics.