early robotic prosthetic hand, made in 1963. on open public display at the main shopping mall in belgrade. as robots and prosthetic limbs become more complex the need for sensors capable of detecting touch with high tactile acuity becomes more and more necessary. there are many types of tactile sensors used for different tasks. there are three types of tactile sensors. the first, single point sensors, can be compared to a single cell, or whiskers, and can detect very local stimuli. the second type of sensor is a high spatial resolution sensor which can be compared to a human fingertip and is essential for the tactile acuity in robotic hands. the third and final tactile sensor type is a low spatial resolution sensor which has similar tactile acuity as the skin on one's back or arm. these sensors can be placed meaningfully throughout the surface of a prosthetic or a robot to give it the ability to sense touch in similar, if not better, ways than the human counterpart.