During the 20th century, many technological advances (automobiles, appliances, TV, radio, computers, airplanes, etc.) were responsible for creating innumerable employment opportunities, especially for blue-collar workers. The opposite seems to be happening in the 21st century. The advances in communications and transportation technologies over the past few decades have enabled companies to outsource numerous manufacturing and customer service jobs. In the domestic arena, technology has had an adverse impact on jobs, as demonstrated by the introduction of automated teller machines, email, E-ZPass, self check-out grocery aisles, etailing, etc. IBM's Watson computer initially demonstrated its skills on "Jeopardy," but now WellPoint health insurance is utilizing Watson to apply artificial intelligence capabilities to the processing of medical insurance claims.