Microsoft just announced that there will be three versions of Windows 8 when it is released in the fall. As mentioned in an earlier post, Microsoft has designed their next OS to be capable of working on laptop and desktop computers both of which normally have x86 processors as well as tablet devices that are usually powered by ARM processors. Two versions will be compatible with the x86 processors, Windows 8 and Windows 8 Pro; the average consumer would likely pick up Windows 8 while power users and businesses would be more interested in the Pro version. Windows RT formerly known as Windows 8 on ARM will be able to run on less powerful devices such as tablets that have ARM processors. The latter version will include touch optimized versions of Microsoft Word, Excel, PowerPoint and OneNote. PC’s and tablets powered by the updated OS are expected to be released in October.
Source: Boy Genius Report