By NICK WINGFIELD
On Wednesday, Microsoft for the first time showed Cortana, a virtual assistant for its mobile operating system that is designed to be a more intelligent, personal version of Apple’s Siri assistant for the iPhone. Cortana is the most high-profile feature of Windows Phone 8.1, a soon-to-be-released update to Microsoft’s mobile phone operating system.
Published: April 2, 2014 at 12:00AM
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