A transmissive key sheet using translucent resin, which is capable of effective illumination while ensuring the thinness of the entire key sheet as well as suppressing a decrease in light transmission, input keys using the transmissive key sheet, and electronic equipment with the input keys. Instead of sending behavior metrics from a trustee node to a trustor node, the trustor node sends an evaluation function to the trustee node. The DAC can include a self-calibration stage to improve accuracy. The apparatus further including a processing station configured to hold the biomass input material, and to use the biomass input material for processing into the water storage material. While the device is in a first user-interface state, the one or more objects transition in optical intensity to indicate progress towards satisfaction of a user input condition needed to transition to the second user-interface state. Thus, the electronic circuit devices are inspected at the first inspection station in a first orientation in the first work piece, and are inspected at the second inspection station in an inverted orientation in the second work piece.