An improved luminescence wheel assembly has a latch base coupled to a plastic optical fiber structure installed on both sides of a wheel axle, such that the improved luminescence wheel assembly is easy to install, easy to remove, and aesthetically pleasing. The control unit outputs a control signal simultaneously to the memory access controller and to the inputoutput circuit. Furthermore, the improved torque converter employs or can employ a bypass clutch andor one or more torsional vibration dampers simpler and less expensive than but superior to those in conventional torque converters. The folded interposer allows multiple semiconductor dice to be efficiently stacked in a high density semiconductor package by reducing the unused or wasted space between stacked semiconductor dice. A microphone unit is used to record audio sound bites for each photograph stored in the album and a control button is pressed to activate a playback circuit, which includes a speaker on the album, to play back the audio recorded for the selected photograph. The interior surfaces comprise a non-stick scratch resistant surface, which is dishwasher safe.