Oh god...I need to save this thread with my elitist knowledge here....
Yeah Techno was something that ravers called electronic dance music in the early 90s. Then idiot America bastardized the meaning of the word by calling The Chemical Brothers, The Crystal Meth, etc. "techno" thus turning it into an all encompassing word that homophobes, soccer moms, and overall naive Americans alike could use in order to refer to anything that wasn't rap, hip-hop, classical, country, rock, or britney spears shit.
Here's what literal "TECHNO" music is in it's true and original definition. The music lacks grove, melody, pop, chorus, etc. It's a very raw and repetitive form of dance music minimally using instruments and emphasizing percussion heavily. Unless you are inspired to dance and put your mind and body through a great mind-fuck hypnoses, this music will get annoying really quickly and you'll have the urge to turn it out. Personally, it makes me wanna dress up in a large bunny suit, jump up and down frantically, and then pass out...and do the same thing over again after my friends give me a redbull, and then talk music jargon at a local IHOP at 5:30am...pass out, then awaken the next day too early and saunter my way to a sushi bar while this music is still pounding in my head.
Now here's an example of a DJ who uses the word "techno" more broadly and unintelligently. In other words, this is not techno music. Most of the music here is actually NRG, Nu-NRG, progressive trance, and just all around really annoying music that makes you want to kill clowns and make out with anime pandas at a circus. This is music you will hear at popular European events like the Love Parade. Be forewarned.
Still the real meaning of techno has shifted into something very specific today. About 20 years ago techno was more all encompassing even underground because genres did not sub-divide yet. This is what techno sounded like in 1990-1992. It sounded very chaotic, dramatic, and "end of the world." ...oh it also incorporated rap (see 2nd video).