Chief Executive Officer Steve Ballmer Delivers The Keynote At The Microsoft Build Developer Conference


An attendee uses the touch screen on Microsoft Corp.'s Surface... News PhotoCalifornia,Computer,Computer Equipment,Computer Programmer,Computer Software,Development,Digital Tablet,Electronics Industry,Finance,Horizontal,Microsoft,Microsoft Surface,North America,Operating System,San Francisco - California,Technology,The Americas,Touch Screen,USAPhotographer Collection: Bloomberg 2013 BloombergAn attendee uses the touch screen on Microsoft Corp.'s Surface computer tablet during the Microsoft Corp. Build Developers Conference in San Francisco, California, U.S., on Wednesday, June 26, 2013. Facebook Inc. is building an application for Microsoft Corp.'s Windows 8, adding one of the most popular programs still missing from the operating system designed to help Microsoft gain tablet customers. Photographer: David Paul Morris/Bloomberg via Getty Images