An electrical cable having a holding member arranged within the cable for an optic fiber, which can be used for temperature sensing andor communications. The primary object of the system is to optimize a primary value function over time through continuously learning how to behave in an environment. A food tray is disposed proximate the puck assembly, and a lid shaped to alternatively fit on the top surface of the wall of the base and to fit on the external surface of the bottom of the base such that the base can nest in the lid. Error patterns caused by the normal resolution crosstalk are localized in the leading edges of a mark following a long space and in the trailing edges of a long mark. A clock buffer buffers an external clock to generate an internal clock when the buffer control signal is enabled.