Analog robot
An analog robot is a type of robot which uses analog circuitry to go toward a simple goal such as finding more light or responding to sound. The first real analog robot was invented in the 1940s by William Grey Walter. The name of these robots were ELSIE and ELMER (Electro Mechanical Robot). The original circuitry was developed using two vacuum tubes and a photocell to search and follow a light. Recently a kind of analog robots was developed by Mark Tilden.
Hans Baruch
Hans Baruch (September 16, 1925 – June 6, 2013) was an American physiologist/inventor, noted mainly for his contributions to scientific apparatus and instruments in the field of automated clinical chemistry. His Robot Chemist "was the first commercially available discrete analyzer, and probably the first to produce results with a digital print-out."