Reuters Pictures
An employee rides her bike past a logo next to the main entrance of the Google building in Zurich July 9, 2009. Google Inc plans to attack Microsoft Corp's core business by taking on the software giant's globally dominant Windows operating system for personal computers. Google, which already offers a suite of e-mail, Web and other software products that compete with Microsoft, said it would launch a new, free operating system that will initially be targeted at netbooks.