A client-server system may include a distributed store configured to maintain a primary state of session data including one or more attributes. The coil conductor patterns are successively electrically connected in series in regular order through via holes. The interface IC loads data identifying a functional latch into the prefix register and data defining a functional condition into the data register of each driver IC. The predetermined temperature can be adjusted to provide appropriate amount of heat to the popcorn maker for popping a maximum number of corn kernels while limiting the heat from causing damage to heating coils and thermoplastic parts of the popcorn maker. An adhesive is disposed in the slot joining the second structure to the joint element.