Enhancements improve the use and enjoyment of electronic books, particularly those having both a viewing and audio enunciation capability. Each input port storing data to be sent may generate a request to output data to each of the output ports to which stored data is to be sent, wherein each request identifies a specific one of the plurality of switch units to be used to transfer the data from the corresponding input port to the corresponding output port. The capillaries transmit statically-retained fluid that is in contact with the upper surface of the protrusions. The issuer and the underwriter collaborate via electronic communications to determine the final financial parameters of a financial instrument to be issued in the primary offering based on the initial parameter data and an agreement between the issuer and the underwriter. The modularized devices effectively reduce manufacturing cost of the wheel chair. Each line within the second set of lines is connected to one of the wires.