Labor saving ideas involving the computer, particularly for industrial and mechanical purposes, is a never-ending process. Computers in industry are drastically changing the way things are made and profoundly changing the jobs of the people who make them. In 1947 the California Institute of Technology devised a method for using computers to aid in designing aircraft. By 1950, the Massachusetts Institute of Technology (MIT) had developed an automatically controlled milling machine used in cutting metal parts. In 1963, Sketchpad, an early forerunner of the Computer Aided Design (CAD) system, was developed by Lincoln Laboratories. A similar system, DAC-1 from General Motors, was developed at the same time. In 1968 MIT and the U.S. Air Force jointly developed a CAD/CAM (computer aided manufacturing) system to drive lathes and tooling machines used in the aeronautics industry. By the 1970s a number of new methods were developed...