ALMOST THERE: Microsoft released the final test version of Windows 8, the much-anticipated overhaul of the company's operating system. That signals its makeover is nearly done.
ABOUT THE SYSTEM: Windows 8 is considered to be the biggest change in decades to Windows. It has been designed so it can run desktop, laptop and tablet computers.
BROADER TRENDS: PC sales have slowed in the U.S. as consumers delay replacements and instead buy mobile devices such as smartphones and tablet computers. The versatility of Windows 8 is expected to spawn a new generation of computers that are part laptop, part tablet.