MICROSOFT TABLET: Taking aim at Apple’s iPad, Microsoft Corp. unveiled Surface, a tablet computer that comes with a detachable rubberized touch keyboard that also acts like a book cover.

SPEC SHEET: Surface will have a 10.6-inch screen measured diagonally, and come in the widescreen-adapted 16:9 aspect ratio. It’s 9.3 millimeters thick and weighs less than 1.5 pounds.