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'Major' Microsoft announcement in Los Angeles

FILE- In this Tuesday, Jan. 17, 2012, file photo, attendees at the National Retail Federation visit a Microsoft display in New York. Microsoft Corp. said Monday, June 18, 2012, it will make a "major" announcement after the market closes on Monday. Speculation has ranged from an unveiling of a new tablet computer that uses low-power chips to a new system that will use an upcoming version of Windows to (AP Photo/Mark Lennihan, File)

LOS ANGELES (AP) -- Microsoft has unveiled Surface, a tablet computer to compete with Apple's iPad.

CEO Steve Ballmer was on hand to announce the tablet, calling it part of a "whole new family of devices" the company is developing.

The 9.3 millimeter thick tablet comes with a kickstand to hold it upright and keyboard that is part of the device's cover. It weighs under 1.5 pounds.

Steven Sinofsky, the president of Microsoft's Windows division, called the device a "tablet that's a great PC —a PC that's a great tablet."