Klaus Knopper (born 1968 in Ingelheim) is a German electrical engineer and free software developer. Knopper is the creator of Knoppix, a well-known live CD Linux distribution. He received his degree in electrical engineering from the Kaiserslautern University of Technology (in German: Technische Universität Kaiserslautern), co-founded LinuxTag in 1996 (a major European Linux expo) and has been a self-employed information technology consultant since 1998. He also teaches at the Kaiserslautern University of Applied Sciences. Knopper is married to Adriane Knopper, who has a visual impairment. She has been assisting Knopper with a version of Knoppix for blind and visually impaired people, released in the third quarter of 2007 as a live CD. Her name has been given to Adriane Knoppix. Adriane is a desktop or "non-graphical user interface" for blind computer beginners. It will work on any Linux distribution that has a screenreader (preferably SBL (Screenreader for Blind Linux Users)) and some text-based tools for Internet access and normal work.