John Zaitseff is the founding member of The ZAP Group, a non-profit organisation dedicated to providing high-quality software and computer-related documentation. Over the years he has been involved in many aspects of computer engineering, from designing embedded processor boards, to developing low-level software in C and assembly, to high-level programming with Graphical User Interfaces, to system administration involving Debian GNU/Linux, Ubuntu, Fedora, CentOS and OpenSUSE, to web content creation, to high performance computing on teraFLOP machines and more! He may be contacted by writing to or by visiting his web site at