Gartner reports worst ever quarterly decline for PC shipments in the region

Gartner says low demand for feature phones affected growth in all regions except Asia-Pacific

Rivals erode Apple's share, but iPad manufacturer accounts for more than half the market

The Finnish company drops to the sixth place in the smartphone chart

IDC has predicted modest PC growth this year, with the arrival of Windows 8 and Ultrabooks aiding market share

Google web browser tops the charts for the first time in its history

Amazon's Kindle Fire tablet led the surge for Google's Android operating system claim to 39 percent of the market

Android had bragging rights for much of 2011 but then came the iPhone 4S to change the December figures

The Android operating system hit 52.5 percent market share compared with 15 percent for Apple's iPhone

Google continues to increase its lead over Apple's iOS, RIM BlackBerry and other smartphone platforms