Tiernan Ray has been covering technology and business for 25 years. He writes weekly about artificial intelligence for ZDNet and about stocks for TheStreet.com. He is also a contributor to Fortune magazine. Previously, Tiernan was technology editor for Barron’s. He has also worked for Bloomberg and SmartMoney, and for the prestigious ComputerLetter newsletter covering venture capital investments in tech. His work has also been published in The New York Times and CNN Money. He is a graduate of Princeton University and a native of New York City.