A memory system includes an array of solid state memory devices which are in communication with and under the control of a controller module via a device bus with very few lines. The array has a hierarchy of cells, where cells at a lower level of resolution include spatially adjacent smaller cells at a higher level of resolution. An RF plasma source power supply is connected across each of the plural conductors. Further, the driving of each group of bit lines is controlled by a dedicated bit line driver circuit of a plurality of bit line driver circuits. The present invention is particularly suited for, although not limited to, enabling a user to adapt the tip of a standard grease gun to a specified grease fitting to lubricate landscaping equipment and power tools, thereby eliminating the need to purchase a brand specific tube of grease. In a preferred embodiment, while a media item is displayed within the user interface, an overlay having features associated with the media item being displayed on the user interface is layered on top of the user interface such that the media item beneath the overlay layer is at least partially viewable through the overlay layer.