In Polish, Ukranian, Russian and other languages the word "robota" just means "work", from which the word "robot" was coined in the early 20th century: a machine for doing work. From that basic idea the modern usage of the term developed: a machine capable of carrying out a complex series of actions automatically.

The word "robotics" is commonly used to describe the intellectual field of studying robots. The word was coined by the science fiction writer Isaac Asimov (2 January 1920 – 6 April 1992). According to the Oxford English Dictionary, the term "robotics" was first used in the short story "Liar!" published in the May 1941 issue of "Astounding Science Fiction."

Asimov propounded the "Three Laws of Robotics" which crop up in several of his books and short stories. The irony is that his three laws are not "laws" in any normal sense of the word. No technology yet created has the ability to understand or follow them; the many robots designed for military purposes violate the Asimov laws. In fact, Asimov's laws were set up to point out how a simple ethical system just does not work in the world of robots. Every one of his stories that incorporates the laws of robotics focuses on failure: the laws are completely impractical.

The picture is of a robotic fish.

More Info: en.wikipedia.org