It's hard for me to be sure when, because I've been on the internet since 1991, and surrounded by geeks for a long time ever since. So I'm throwing it open to you lot:
In my part of the world it became weird to not be on the internet in...
(Feel free to use 1993 to include earlier than that, and 2013 to mean "It's not yet, you weird geek.")
← Ctrl ← Alt
Ctrl → Alt →
← Ctrl ← Alt
Ctrl → Alt →