Blue Peter "Sailors Hornpipe" was used instead. The opening theme has been updated several times. The following is a list of all the versions of the "Blue Peter" signature tune, "Barnacle Bill" that have been used on the show : The debut of a new version of the famous theme tune "Barnacle Bill" is sometimes accompanied with an introduction by the presenters at the time explaining the reasons behind the new rendition. Mike Oldfield appeared on the programme around 1979, and his version of the theme tune was so popular with viewers that the producers decided to record it for use as
Barnacle (slang) to a system. The connotation in the software industry is that a software barnacle is code added as an expedient without regard to the original design intent. A software barnacle may also refer to malware or spyware which has been inserted into a computing system illegally. On printed circuit boards, a barnacle may be as simple as cutting a trace, soldering a wire in order to connect two points on the circuit board, or adding a component such as a resistor or capacitor. A barnacle may also be a complex subassembly or daughterboard. Barnacles in hardware assemblies allow an engineer