My body is an electronic virgin. I incorporate no silicon chips, no retinal or cochlear implants, no pacemaker. I don't even wear glasses (though I do wear clothes). But I am slowly becoming more and more a Cyborg. So are you. Pretty soon, and still without the need for wires, surgery or bodily alterations, we shall be kin to the Terminator, to Eve 8, to Cable...just fill in your favorite fictional Cyborg. Perhaps we already are. For we shall be Cyborgs not in the merely superficial sense of combining flesh and wires, but in the more profound sense of being human-technology symbionts: thinking and reasoning systems whose minds and selves are spread across biological brain and non-biological circuitry.
Source: Natural-Born Cyborgs : Minds, Technologies, and the Future of Human Intelligence , Page: Introduction
