<p>Provided is a device which has an operation/display section and does not easily generate limitation in designing of the entire device nor limitation in an arrangement direction of the device. The device having the operation/display section is provided with a box-shaped casing (10) to be outer walls of the device, and at least the operation section or the display section on an outer plane of the casing (10). The device is provided with a corner plane (20) having a shape formed by cutting a corner section formed by three wall planes (11, 12, 13) of the casing (10), and at least the operating section or the display section is arranged on the corner plane (20).</p>
