Ralph 124C41+ is the name of a character in the science fiction novel of the same name. The novel was highly influential at the time and and the author (Hugo Gernsbach) was able to predict technological developments that would appear years and years later.  For example, he predicted the television and transcontinental flights. And the term was used in one of my favorite animes "Ergo Proxy".

More info can be found here:

http://en.wikipedia.org/wiki/Ralph_124C_41%2B