It used to, back in The Day, when you had hard-copy consoles or even dot matrix printers. I think sending CR (but not LF) and then printing accents over top of

It used to, back in The Day, when you had hard-copy consoles or even dot matrix printers. I think sending CR (but not LF) and then printing accents over top of the original line was a way of printing some European languages with just ASCII.