Douglas Comer

Douglas Earl Comer is a professor of computer science at Purdue University, where he teaches courses on operating systems and computer networks. He has written numerous research papers and textbooks, heads several networking research projects, and has been involved in TCP/IP and internetworking since the late 1970s, becoming an internationally recognized authority. He designed and implemented the X25NET and Cypress networks and the Xinu operating system, completing the original version of Xinu in 1979; Xinu has since been expanded and ported to platforms including the IBM PC, Macintosh, Digital Equipment Corporation VAX and DECstation 3100, Sun Microsystems workstations and Intel Pentium machines, and has been used as an embedded system in products from companies including Motorola, Mitsubishi, Hewlett-Packard and Lexmark. He is director of the Internetworking Research Group at Purdue, editor of Software - Practice and Experience, and a former member of the Internet Architecture Board.