A hinge device of a portable terminal connects a keyboard member to a comparatively massive display member and has cam and friction mechanisms. The out put of the is sampled and storing with an analog-to-digital converter to acquire and store at least two digital voltage values. The cavity is provided with a cylindrical body disposed in a rotatable state with respect to the support part. The card games are played in succession such that the cards in a previous card game are combined with new cards and are reshuffled for selection to result in the cards of a succeeding card game.