Abstract: A switching arrangement includes a sensor (1) for detecting physical actions of a user (3) within a region of space in which the user is located. The sensor generates an output signal representative of a detected physical action, the signal being received by a signal-processing system (5). The signal-processing system is adapted to analyse the output signal to determine whether the user has made a deliberate physical action and to actuate a switch (9) on detection of such a deliberate physical action.

Abstract: A method of controlling the movement of a cursor includes selecting a direction of intended movement of the cursor. Thereafter a jump mode is executed in which the cursor is caused to jump in at least one step towards a predetermined target. Subsequently, a drift mode is executed in which the cursor is caused to move substantially continuously in at least one further direction towards the predetermined target. Finally, when the predetermined target has been reached, a control option is executed in dependence upon the nature of the predetermined target.