Androids are robotic creations whose physical appearance is patterned after that of a humanoid. While all androids are robots, not all robots are androids. Some androids bear an appearance so similar to a normal human being, that they can often fool various means of perception be it ocular, electronic or otherwise. In television, the most infamous android of all is without question Lieutenant Commander Data from the syndicated sci-fi series Star Trek: The Next Generation. Although he is very obviously a robot, Data has demonstrated an unwavering desire to become more human, even going so far as to have a microchip implanted that simulates human emotion.