A system and method for assisting children in organizing and categorizing information, includes a program that includes a dual graphical and non-graphical user-interface that is operable by a child to create and identify a variety of concepts, and to organize and arrange those concepts in a non-graphical hierarchy by creating spatial associations using the graphical user-interface. The first module comprises a bottom plate. The ground connections of both core and periphery are mutually coupled through an interconnect in the carrier substrate. Each through hole in the voltage plane element is aligned with a plated through hole in each of the circuit board elements to provide a surface on the voltage plane element communicating with the plated through holes. By verifying that the hash value was computed using that commitment, the verification mechanism validates the credential and permits access to the service provider. The shunt is also arranged to provide a short circuit for the dc signal to bypass the input of the master logic gate.