They also allow for the user to delete any unwanted pictures. Basically what a digital camera does, is it eliminates the negative aspect of picture taking. There is no film or processing involved other than connecting the camera to a computer. Digital cameras also use digital devices for storage and printing. Digital images also have a limited number of colors, unlike analog cameras.
Digital cameras are very expensive.
Such things as open fourums to mailing lists. They also have every subject, from technique to equipment. For more info click HERE . I would have to belive the same rules of both ethics and morals apply to digital photography as do to conventional analog photography.