The word robots comes from a Czech word robot which means forced labor. In the first century the great Engineer Heron of Alexandria was honored for creating the initial steam engine which was designed interesting robots and also has the ability to speak. In 1945, a sketch drawn by the artist Leonardo da Vinci, a mechanical knight which had hands,legs and also could sit up was considered to be the initial idea for a humanlike robot. In 1948 William Grey Walter, produced the transformation of electronic autonomous robots and in 1954 the inventor George Devol make the first merchandising, digital and programmable droid named that robot ‘Unimate’.
In 1961 general motors buy the robot unimate which was used to pick the items of molten metal from die casting engine.In the fullness of time the humanlike machines and robots have become extremely popular in society and become familiar characters by the books, movies and televisions shows. This popularity of robots and machines shows that people are believes that droids will one day walk with us as a helper and even as companions. Nowadays robots play an important role in industries where one robot works for every 10 employees in motorcars manufacturing industries.