With a method and a System for tongue based control of computers and/or aids, particularly for severely disabled persons it is the intention to ease the communication capabilities of severely disabled persons and their control of their aids, where the costs of producing the system are low, thereby avoiding the drawbacks of the prior art. This goal is achieved with a method and a system, where the method comprises that the interaction between the arrangement and the tongue is based on induction, whereby the arrangement is equipped with at least one coil being able to interact with at least one piece of a magnetic responsible material fixed to the tongue, and that the signals transmitted to the device further comprise the position of the coil in the arrangement and/or the position of the magnetic responsible material fixed to the tongue, and the system comprises that the arrangement is equipped with at least one coil being able to interact with at least one piece of a magnetic responsible material fixed to the tongue, and that the signals transmitted to the device further comprise the position of the coil in the arrangement and/or the position of the magnetic responsible material fixed to the tongue.