A genre of music which is primarily listened to by disgruntled nerds whos' only friends are anime charicters. To the socially competent, 'techno' is a perfectly acceptable term to describe what these nerds call 'electronic music.' Electronic music is a bit of misnomer considering that it's not really music.
However, if you attempt to use the word in that manner you will face the onslaught of a million angry nerds screaming, 'HOW DARE YOU, YOU IGNORAMUS! YOU HAVE MISCATAGORIZED ONE OF THE 92 DIFFERENT SUBGENRES OF ELECTRONIC MUSIC!.'
These nerds, due to their untreated OCD, enjoy spending their time classifying every possible 'song' into one of infinite subgenres. This attempt is futile because all techno sounds the same.
Techno nerds are tremendous elitists and enjoy laughing at what they see as the 'ignorant masses.' However, on the inside they are so, so, lonely and cry themselves to sleep every night after masturbating to sailor moon hentai
Techno takes absolutely no musical talent to produce and it all sounds pretty much the same. With GarageBand and a keyboard you can make techno that's up to par with virtually all 'electronic music.' If you've heard one 'song' you've pretty much heard it all.
The biggest perceived enemy of techno nerds is rap music. They rant constantly about how 'rap is crap,' and how SEORIUSLY GAIZ RAP IS JUST ELECTRONIC MUSIC BUT WIT BLACK PEOPLEZ TALKIKNG.' What they don't realize, however, is that rap is about the rythmic and lyrical talent of the rapper, not the background music. If rap fans wanted to listen to some shitty 4/4 beat isolated by itself, they would listen to techno.
In conclusion, techno sucks monkey nuts. You would be better off listening to any other genre of music. If a techno nerd either rants to you about how you are an ignorant fool or even tries to get you to listen to techno, punch him in the face.