Numerical control
The invention of numerical control has been due to the pioneering works of John T. Parsons in the year 1940, when he tried to generate a curve automatically by milling cutters by providing coordinate motions.  In the late 1940s Parsons conceived the method of using punched cards containing coordinate position system to control a machine tool.  The machine directed to move in small increments and generate the desired finish.  In 1948, Parsons demonstrated this concept to the US Air Force, who sponsored the series of project at laboratories of Massachusetts Institute of Technology (MIT).  After research MIT was able to demonstrate first NC prototype in 1952 and in the next year they were able to prove the potential applications of the NC.