IBM is to buy Varicent, which makes software for automating and analysing the collection and reporting of cross-departmental sales data

In the overall US phone market Samsung is on top, with Apple standing fourth, behind LG and Motorola

Analysts predict that the tablet market could receive a further boost when the next iPad is launched

RIM's BlackBerry sales "decreased significantly" in Europe putting pressure on the launch of BlackBerry 10 in autumn

Google's application metrics dashboard for Android Market now informs developers how their products are faring with users

A Gartner study shows IBM topped the server market in revenue for 2011 while HP led the market in server shipments

Amazon's Kindle Fire chomped away at Apple and Samsung's tablet market shares in the fourth quarter of 2011

Apple had the top-selling smartphone at the end of 2011 and was third overall phone vendor worldwide - but ZTE and Huawei are on the rise

Tablets and smartphones make gains, while sales of desktops and laptops slump

Google's Android is activated on over 700,000 mobile devices every day, according to its creator Andy Rubin