cknowledgments Thank you to all of the many people that took the time to share important information about technology and government regulations. Staffs at the FCC and the Massachusetts Department of Telecommunications and Cable provided clear explanations of national and state regulations. Marketing Consultant David Gitner was a terrific source of information on storage systems. Geoff Bennett, Director, Solutions and Technology at Infinera, provided clear information about fiber-optic multiplexers, and Mike Quan, cofounder of Boston 360, illuminated information about virtual reality. James Chapman, Senior Product Manager at Ipswich, spoke with me about network management systems. Bob Xavier, Director, Systems and Networks at Berklee College of Music, gave me a tour of Berklee' IT department and discussed the issues involved in managing merging IT systems when colleges merge. As always, Carly Premo Mello, IT Director, and Jamie V. Schiavone, Network Manager for Framingham, Massachusetts, discussed the challenges of managing security and storage networks. Joe Mulvey, IT director for Newton, Massachusetts, and his staff spent time discussing their broadband, Wi-Fi, and IT structures and gave me a tour of their data center. Mark Roberts, the Chief Marketing Officer at the former Shortel (now Mitel), discussed specialty applications using VoIP technology. All of these people provided insights into real-world issues. Thank you also to Fernando Mousinho, Cisco Systems Director of Product Management for Endpoints, for his lucid explanation of Cisco Systems' office products and video conferencing services. Many thanks to Dave Parks, former Director of Segment Marketing at Ciena Corporation, for his generosity in providing information www.TechnicalPDF.com on Ciena' broadband hardware and software. Dave has been an enormous source of information for earlier editions of my book as well as for this sixth edition as has Joe McGrath, VP of Information Technologies, Sage Therapeutics. Thanks to Kevin Klett, VP of Product Manage