An example multilayered bus bar includes, among other things, a first conductive layer, a second conductive layer, and a third conductive layer. A backup system and method is provided in order to return the visual state of the computer to a previous state if an instruction generates an exception. The enclosure obscures the display from visibility when the display is not in the active state. The parking information is stored in a parking data structure, such as a database, which also stores properties for the spaces.