We trace the rise of free open source software—code that can be freely modified and shared—from philosophical outlier to modern powerhouse Underlying every piece of software you use is source ...

Open source refers to software or other projects with source code that can be viewed, modified, or upgraded by anyone. Learn about the pros and cons of open source.

As crazy as that might sound, the open source way of building software is now embraced by the likes of IBM, which plans to pay $34 billion for open source company Red Hat, Microsoft, which paid $7 ...