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The ATIV Tab runs the RT version of Windows, which means it can't use existing x86 apps developed for Windows 7 or Windows 8. By contrast, the ATIV Smart PC (shown) uses the full-fat version of Microsoft's new OS, which can run either 'Windows 8 style apps' (formerly called Metro) or traditional desktop apps.
Launched first at IFA at the end of October, the ATIV Smart PC is a tablet with an 11.6-inch, 1,366-by-768-pixel display that can dock into a keyboard for a more laptop-like experience.
Image: Ben Woods