The scientific name of the "black box" is "aviation flight recorder". The reason why it is called "black box" is not because it is black, but because it can help crack the secrets of flight accidents. The black box contains a flight data recorder and Two sets of gun sound recorders can record the relevant technical parameters and the sound in the cockpit half an hour before the aircraft stops working or crashes the flight. When necessary, it can release the recorded parameters for flight test and Used for accident analysis. According to the above definition, Which of the following devices belong to the "black box":. ['A black box on the aircraft is activated at the same time as the accident and records related information.', 'Some kind of black device on the train can automatically record the relevant information of the train operation.', 'A red device in a civil aircraft, where information can be input individually, but cannot be interpreted or output.', 'An orange-red device on the fighter, which can record related flight data and can analyze and restore.']