SOS is a Morse Code distress signal. Morse Code is a system that uses dots, dashes and spaces to communicate letters and numbers. It was first created during the 1830s by Samuel F.B. Morse but was ...
your phone has its service bars and Wi-Fi signal in the top right corner — but on this troublesome morning, if AT&T is your carrier, that signal status was likely replaced by a jarring "SOS." ...