An electrical device includes a plurality of apparatus connected with a daisy chain connection through a communication line so that the apparatus communicate with each other through the communication line; and a control unit connected to one of the apparatus at an end stage thereof so that the control unit is configured to communicate with the one of the apparatus. The chamber contains an aerosolizable pharmaceutical formulation or is sized to receive a receptacle which contains an aerosolizable pharmaceutical formulation. A hardenable or curable material for forming the prosthetic socket is injected into the chamber around the web. Upon power-up, in nonvolatile mode, the integrated circuit does not need external data. The system further includes a summarizer component to automatically determine a subset of the data over the corpus of data relating to at least one of the topic, wherein the subset forms a summary of at least one topic.