A content-generic platform may provide online content-specific services via primitives. The server data processing system communicates with the receiving data processing system in a manner by pushing content when appropriate. The capillary tube comprises two sections which are arranged axially one behind the other, the diameter of the bore of the inner section amounting to at most 90% of the diameter of the bore in the outer section. According to the present invention a cell is programmed by lowering the threshold voltage of the cell, thereby turning the cell \u201con.