Read more at:Microsoft has a supersecret announcement coming on Monday, and it may well be a tablet running Windows RT. Here's what we know so far about the mostly Metro, ARM-powered variation of Windows 8.
What in the world is Windows RT?
Coming off of our previous coverage, you may have heard about Windows 8 and Windows RT as being different. While Microsoft has made a point of cutting down on the number of Windows 8 versions available when compared with previous Windows releases, the company is also making a limited Windows 8 version to run on ARM processors called Windows RT (WinRT).
Just what is Windows RT, anyway? (FAQ) | Windows 8 - CNET Reviews