Discovering content on a device. The stainless steel flexible foil substrate includes about 10-25% chromium and about 0. The user image manager acquires the image of the user from an image capture device and registers the acquired image of the user in a user image database. The user input device is also linked to the computer and capable of at least partially controlling the operation of the computer. The solenoid device and the electromagnetic switch are arranged in series in an axial direction, while a magnetic plate that forms a part of magnetic circuit between a first coil used for the solenoid device and a second coil used for the electromagnetic switch is shared by the solenoid device and the electromagnetic switch.