Valve’s Steam client is pretty widely compatible with all kinds of newer and older operating systems—that’s what you do when you want as many people as possible spending their money in your store. But ...

The Defense Department has adopted open-source software and operating systems for some of its projects. But most of the military — like most of the world — uses Microsoft operating systems. For ...

Operators and handset makers are moving toward standardizing on just a few mobile phone operating systems. They’re likely to choose relatively open platforms with large developer groups, according to ...