Patent ID: 6481629
Filing Date: 2002-11-19
Classification: G06F

Abstract:
A card medium which, when inserted into a slot provided in an information processing apparatus proper, is connected to the information processing apparatus proper, the card medium comprising:a control section for controlling operation in a first operational mode in which data communications with the information processing apparatus proper are carried out with a data bus having a first bit width, and operation in a second operational mode in which data communications with the information processing apparatus proper are carried out with a data bus having a second bit width; selection means for selectively changing over between the first operational mode and the second operational mode; a terminal to notify the information processing apparatus proper of the first operational mode or the second operational mode selected; and operational mode notifying means for notifying to the information processing apparatus proper, via the terminal and the control section, whether the first operational mode or the second operational mode is chosen by the selection means, wherein the selection means is a hard switch which is switched manually.