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Alan B. Oppenheimer, co-designer of the AppleTalk network system, spent 11 years at Apple Computer developing networking software. He is the co-founder of and president of Open Door Networks, Inc., a Macintosh Internet tools and services company. He is the author of Inside AppleTalk by Addison-Wesley Longman.
Charles Whitaker is a veteran of Informix, Inc, where he developed Unix-based products. He currently works as a technical writer and quality assurance manager at Open Door Networks.