Comfort and Convenience
Power adjustment moves the driver's seat by motor, setting position; the memory function is separate, recording a chosen position for recall. Heating and ventilation differ again: switching them on is one act, selecting their level another.
Safety and Driver Assistance
The anti-lock braking system assists rather than informs or protects by itself. It senses a wheel about to lock under heavy braking and modulates that wheel's pressure, so steering input can still change direction.
Multimedia and Connectivity
The USB connection is used by plugging a cable between a phone or memory stick and the port, letting the audio system read stored files directly and, on many devices, draw charging current through the same lead.