<P> The Doctor's program required a custom - built photonic processor, and Starfleet outfitted Voyager with only two . This hardware itself also could not be replicated, hence the Doctor could not be easily backed up, restored, or copied . </P> <P> Voyager's computers could not help run his photonic program, and could not contain a usable backup of its image . The Doctor's entire program used 50 million gigaquads - episodes "Lifesigns" and "The Swarm" mention these limitations . The episode "Living Witness" depicts a future Delta Quadrant civilization building a museum around Voyager artifacts, including its redundant EMH photonic processor . </P> <P> A recurring theme in the Doctor's life was his lack of a proper name . Starfleet did not assign a name and initially the Doctor maintained that he did not want one . In season 1 episode 6, "Eye of the Needle," the Doctor requests a name immediately before credits roll . Later, he adopted such names as' Schweitzer' (after Albert Schweitzer),' Shmullus' (by Vidiian patient Dr. Denara Pel),' Van Gogh,' ' Kenneth,"' Jones' and several others . His friends suggest the famous historical Earth doctors "Galen" and "Spock ." The captioned dialog of early episodes, and early promotional material for the series premiere, referred to him as' Dr. Zimmerman,' after his creator Lewis Zimmerman . In the series finale, an alternate future timeline is shown where he has chosen the name Joe after his new wife's grandfather (and having Tom Paris jest, "It took you 33 years to come up with' Joe'?" in response). </P> <P> Before the arrival of the mobile emitter, The Doctor's holo - program was confined to Sickbay, holodecks, and other areas equipped with holographic systems . </P>

What is the name of the doctor in star trek
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