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John Ray is Senior Business Analyst and Development Team Manager for the Ohio State University Research Foundation. His many Pearson books include Sams Teach Yourself iPhone Application Development in 24 Hours, Using TCP/IP: Special Edition, Teach Yourself Dreamweaver MX in 21 Days, and Mac OS X Unleashed. Ray has an extensive background in computer science and engineering, and wide experience ranging from application to media production, electrical engineering, and network security. He specializes in demystifying complex technical topics for new users.