These make for lighter, longer-battery life tablets.But there are serious limitations with Windows RT, which you can read about in 6 Things You Should Know About Windows RT.
Another is between Windows 8 and Windows RT, the latter of which will only run the new style apps and desktop apps specifically updated for it (such as Microsoft Office).
RT is designed for devices, usually tablets, such as Microsoft's own Surface RT, centered on mobile processors using ARM designs.
Still, I'd argue that the learning curve for using Windows 8 is not as steep as a lot of articles would have you believe, once you have these few tips under your hat.
Much has also been made of the OS's slant toward touch input, and it's true that Windows 8 makes interacting with your finger on the screen a fully functional, smooth option.
This desktop "app" not only looks pretty much identical to the familiar Window 7 interface, but in fact lets you run any program you could run in Windows 7.
A Tale of Two OSes This duality between new-style (formerly known as Metro) interface and apps and the traditional desktop environment is just one to be found in the new operating system.The company's line is that it's a "no-compromise" proposition—a touch-friendly environment for tablets combined with the ability to run all your existing Windows programs.I've been using and writing about the operating system in both its pre-release versions and the RTM (released to manufacturing) version for over a year now.Windows 8 brings more than just an interface and app-running capability.It's also a set of services, courtesy of the new Microsoft Account (which any Hotmail, Xbox, Messenger, or account can supply) and Sky Drive.After a couple days' use, I found navigating the OS nearly as fluid using mouse and keyboard, though some actions remain awkward.