The present invention has an object of providing a rotation output device, including a lock mechanism employing a movable lock member so as to define the lock position, which is capable of, when the operator operates an output shaft to pivot, preventing the movable lock member from being concomitantly rotated with the output shaft and thus providing a locking function with certainty. The airfoil comprises cavities arranged between the suction and pressure side wall for a cooling fluid and exit passages leading from the cavities to exit ports positioned on the pressure side wall. If the telephone and the badge are separated and the mobile telephone is no longer able to receive the enabling signal, then the controller disables the mobile telephone. Other embodiments are described. Simultaneous copies of data sets may be made for storage pools having LAN-free paths in addition to storage pools having only access from a LAN path. Formerly, silicon oxide was used as a dielectric barrier through which electrons were passed to charge and discharge the floating gate.