Yellow Dog Linux is an open source Linux operating system for home, office, server, and cluster users. Built upon the Red Hat/CentOS core, Terra Soft and now Fixstars (which acquired Terra Soft in 2008) has since the spring of 1999 developed and maintained Yellow Dog Linux for the Power architecture family of processors. The distribution combines a graphical installer with support for a wide range of Power hardware, leading-edge kernels, stable, functional compilers for code development, and servers for web, database, email, and network services. More than 2,000 packages are included on the install DVD.