Re: "The author who coined the terms robotics and positronics"
Check the etymology of "robot". It was Karel Čapek's brother, not Asimov who coined it.
The word robot simply means slave in Czech and it was part of the title of Čapek's play in the original language. It then entered the English language as a name for mechanical humanoids.
The word robotics, to describe the science of robot construction and development, was most definitely coined by Asimov.