Barnacle (slang) in the field in order to correct a design or manufacturing defect. The term appears to have originated from the crustacean barnacle which is an animal that attaches itself to rocks, docks, ships, whales, and other objects where it grows. A barnacle in electronics is something added to the manufactured product. Typically a barnacle on a circuit board is very noticeable, much like the mollusc variety on a rock in the sea. While the term was originally used with electronic hardware, it has also migrated into the software industry where is it is used to describe software that is added
Bay barnacle barnacle ("Semibalanus balanoides") or the rock barnacle ("Balanus crenatus"). "Amphibalanus improvisus" has a cosmopolitan distribution and is found in temperate and tropical parts of the Atlantic Ocean, the Arctic Ocean, the Baltic Sea the North Sea, the Mediterranean Sea and the Black Sea. It is not known where the species natural range lies but it may have originated in North America. It has colonised many parts of the world's oceans including the Indo-Pacific and Australasia as a biofouling agent on the hulls of ships. It was one of the first recorded introductions to the Baltic Sea, having been found in