Some examples relate to an electronic system that includes a substrate and a non-volatile memory mounted on the substrate. On the back-end the data traffic is streamlined in order to optimize transfer speed, while on the front-end the user interface employs text boxes and other graphic-related resources to manage the display of information to the user. A directional coupler at the other end of the optical bus routes the transmit light signals to a light-to-RF converter which feeds a sink or antenna, and received signals from a source or antenna are routed by way of an RF-to-light converter and the directional coupler onto the optical bus. Colormapping cannot only determine what colors work best with an individual’s features, but also how best to structure it. The three-unit zoom lens system satisfies predetermined conditional expressions.