No, techno is not just for nerds or gangbangers driving around in cars or anything.. The setup of techno, the regular composition, was first done houndred of years ago. Then, Phillip Glass, a modern composer and "musical genius" developed the style even further. When taperecorders were made available for the public, we got other groups, like the German Kraftwerk. The new electronic sound of it which gives it all a style of its own, is mostly known as ‘techno’, but be aware, folks! Techno is alot of music! Here’s a little educator for ya’ll!
Wikipedia.org: Intelligent Dance Music (IDM) a.k.a Intelligent techno