the invention relates to a “ flexible computer input ”, determined from the data from a touch - sensitive input surface for fingertip positions and pressure trigger regions in comparison with a stored topography for the input signal of a computer . the base topography and the layout topography determined therefrom , can be changed and can thus be adjusted to ergonomically match individual hands and working practices . said topography may be dynamically altered : progressive changes may be made and allowed for , such that a matching of the inputs to individual practices occurs . an input surface which is as transparent as possible displays layouts or objects and works like a touchscreen or visualized touch area . an optional fine - motor feedback can be achieved by means of a surface of elastic construction with a determined geometry . the input is suitable for simplifying various tasks by the simultaneous recognition of two fingers .