. . . . "The entertainment device 2 is provided with memory card slots 8A and 8B allowing a memory card 26 to be inserted therein and ejected therefrom, controller ports 7A and 7B allowing a connector 12 of a cable 13 of the controller 20 to be attached thereto or detached therefrom, a disk tray 3 on which an optical disk such as a DVD-ROM or a CD-ROM is loaded, an open/close button 9 for opening/closing t" .