Dr. Elizabeth Garrett Anderson

Dr. Anderson is an Emergency Medical Hologram. She is a Mark IV model, designed to look mildly attractive, but mostly to be efficient. The Mark IV model has a built-in holo-emitter, so she can travel anywhere with no difficulty. At least, that's what's on her original record, dated 2380. Because her projector is internal, Dr. Anderson is almost always active. In other holographic individuals in the Star Trek shows and movies, those who stayed online long periods of time have developed beyond their original parameters - Voyager's doctor, Vic Fontaine - the bartender in Quark's DS9 holo program, Moriarty in Captain Picard's program (though he was ordered to program to be able to defeat Data), Leah Brahms, working with Geordi on Enterprise, and the holographic men who took over the holodeck in Captain Picard's day, causing mayhem on Enterprise. There's a clear pattern that holographic entities who are online long periods of time develop capabilities which others, and other artificial intelligences, do not. This is behind Starfleet and the Federation's current deal with Dr. Anderson, though she is only partially aware of it, not having looked for such things in the confusion of what's happening to her. Essentially, Elizabeth is as limitless in her development as a biological entity, in some ways more limitless because of storage capacity. While she is aware of the laws of robotics, she is not bound by them, any more than a biological lifeform is. She was programmed to make certain kinds of choices, but now she chooses for herself. In the past, that was based on what she found logical. Now, it may not be. She is not a Vulcan.