computers with Linux pre-installed (or for that matter, with any operating system other than Mac OS X). Full support for AirPort (Apple's implementation of the IEEE 802.11b-1999 wireless networking standard), and partial support for AirPort Extreme, are also built into Yellow Dog Linux, as are support for Bluetooth and support for accessing the Internet over cellular phones. Following the Mac transition to Intel processors, Yellow Dog Linux retargeted Fedora Core 5.0 and later to support the Sony PlayStation 3 and IBM pSeries platforms extensively, while retaining its longstanding support for PowerPC-based Apple hardware. Distribution Yellow Dog Linux was sold by Terra Soft Solutions (later Fixstars), who also marketed PlayStation 3 consoles, IBM workstations, and servers with Yellow Dog Linux pre-installed. As is the case with most other Linux distribution vendors, a portion of the revenue from the sale of those boxed distributions went toward development of the operating system and applications, which are made available as source code under various free and open-source licenses. Notable implementations Gaurav Khanna, a professor in the Physics Department at the University of Massachusetts, Dartmouth, built a message-passing based cluster using YDL and 16 PlayStation 3s. This cluster was the first such to generate published scientific results. Dubbed the "PS3 Gravity Grid", it performs astrophysical simulations of large supermassive black holes capturing smaller compact objects. Khanna claims that the cluster's performance exceeds that of a 100+ Intel Xeon core based traditional Linux cluster on his simulations. The PS3 Gravity Grid gathered significant media attention between 2007 and 2010. Release history References External links Yellow Dog Linux on PS3 Yellow Dog Linux home page penguinppc.org – Linux on PowerPC site Yellow Dog Linux archive Reviews "Software Review: Yellow Dog Linux 5 for PlayStation 3" – BlogCritics Magazine review of YDL version 5.0 "Yellow Dog Linux 5.0 Hands-on" – IGN.com review of YDL version 5.0 "Yellow Dog Linux 4.0: Some Install Notes" – ppcnerds.org review of YDL version 4.0 Cell BE architecture Discontinued Linux distributions Platform-specific Linux distributions PlayStation 3 software PowerPC operating systems Linux distributions