On board computers are designed for space use and are flight proven with extensive heritage and excellent reliability. The Next Generation On Board Computer (OBC NG) is a fully redundant high reliable on board computer based on the radiation hardened CREOLE ASIC developed by Beyond Gravity. The CREOLE ASIC is a complete spacecraft on board computer on a chip including a fault tolerant SPARC V8 processor, communication functions, reconfiguration function and mass memory controller.