Where does the name "flip-flop" come from?
You know flip-flops?


The actual "flip-flop" name is originated from the sound they made while walking (i.e. by slapping of the sole, foot and floor).

In electronics, a F/F has two "stable" states (0->1 or 1->0) and it alternates from one to another when one or more control signals (e.g. clock) is applied. Let's name it: flip as "0 to 1" and flop as "1 to 0".