Bistable mode refers to a state in which a system can exist in two stable configurations. This concept is commonly found in electronics, particularly in devices like flip-flops and latches, which can store binary information as either a 0 or a 1. The system remains in one of these states until an external signal prompts it to switch to the other state. In bistable systems, the transition between states is typically triggered by specific inputs. This property makes bistable devices useful in various applications, including memory storage and digital circuits. Their ability to maintain a stable state without continuous power makes them efficient for data retention.