ultra high density storage device u201d by gibson et al disclose storage devices with emitters and are hereby incorporated by reference in their entireties instead of the field emitter tips 314 other r w mechanisms may be used in one embodiment optical emitters e g laser emitters leds etc are used the optical emitters which also may be represented by 314 but used instead of the field emitter tips emit optical beams i e photons similarly to the electron beams of the field emitter tips the optical beams emitted by the laser emitters may be focused and used to write data bits onto the storage media 322 by heating tiny data spots and altering the data spots physical state or phase a beam may also be used to determine a data bit state value in the storage media 322 in yet another embodiment of a r w mechanism micro cantilevers which also may be represented by 314 are used instead of the field emitter tips the micro cantilevers may include heated cantilevers or piezoelectric cantilevers for interacting with the storage media 322 to read or write data from the storage media 322 for each embodiment the tip emitter electronics 312 may be substituted with other electronics that can be used to control the respective implementation of the r w mechanism r w electronics 332 comprises one or more circuits which control reading or writing of data bits in the storage media 322 and to access data bits in the storage media 322 to determine data bit value the r w electronics 332 control with nanometer precision the movement of a movable portion 350 of the rotor wafer 340 the movable portion 350 includes the.