Electronica, commonly called techno, is more or less a form of electronic/computer based dance music that is popular with younger crowds. It comes in many forms including trance, acid jazz, jungle, trip-hop, drum and bass, house, and countless other sub genres. It is more or less an evolution of 70s disco, but can arguably be traced all the way to the early 1900s. Its not known who exactly started electronica, but several DJs and artists from Detriot, Germany, France, and the UK have helped evolve the music form since the late 60s and early 70s when it first appeared to larger amounts of listeners.
"Electronica uses catchy beats to get people interested"