Microsoft shows off new tablet computer

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 1/3-inch (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 1/2 pounds (680 grams.)

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."