Abstract: A process and an apparatus for transferring information representing a plurality of parameters which are each indicated by a plurality of digits of different weight. The parameters may represent a plurality of measurable states of an arbitrary type, e.g. two coordinates on a display, the parameter value being a measure of the state. The most important digit is first transferred from all the parameters in a predetermined sequence, and then the digit next in importance from all the parameters in the same predetermined sequence, and so on, until a desired accuracy or resolubility for the parameter values has been achieved, depending upon the state of operation, and transfer of information is then discontinued so that the row of digits is not necessarily transferred entirely.