Fedora AOS (Appliance Operating System) is a specialized spin of the Fedora Linux operating system with reduced memory footprint for use in software appliances.
Appliances are pre-installed, pre-configured, system images. This Spin is intended to make it easier for anyone (developers, independent software vendors (ISV), original equipment manufacturers (OEM), etc.) to create and deploy virtual appliances. The AOS is a scaled-down version of Fedora, with a small footprint, containing only the packages necessary to run an appliance.