For questions about software in an open-source context; its uses and limitations.
Software refers to any executable computer program that is not embedded into the hardware of the host device. Software is programmed and then released for others to use via various distribution methods. Common open-source distribution platforms include GitHub, SourceForge, and the soon-to-close Google Code.
This tag should be used on questions about the open-source aspects of software. Open-source does not only refer to software, so if you are asking about software you should use this tag. Take care that your question is about the open-source aspects of the software, rather than details about the software itself.