Christos Karayiannis holds a bachelors degree in physics from Aristotle University in Thessaloniki, Greece and a masters degree in computer science from the University of Wales in Swansea, Great Britain. His interests in computer science include networking protocols, Unix programming, and open source operating systems. He currently teaches computer science at high schools and polytechnic institutes (TEI) in Karditsa, Greece.
Andrew Swartzbaugh holds a bachelors degree in electrical engineering from the University of Illinois and a masters degree in electrical engineering from the University of California, Los Angeles. His interests in computer science include embedded systems and network protocols. He is currently a Windows .NET programmer in Germany for Resource Networks.