The Xbox 360 is Microsoft's second home video game console, released November 22, 2005. It competed with Sony's PlayStation 3 and Nintendo's Wii (7th generation). It sold 84 million units, establishing Xbox as a major platform.
Early models (Xenon/Zephyr) had ~30-50% failure rate due to lead-free solder BGA cracking. Microsoft extended warranty to 3 years ($1.15B charge). Fixed in Jasper (2008) and Valhalla (Slim, 2010).
The Xbox 360 is the console that won the living room for Microsoft — not by raw power, but by software ecosystem, online service, and developer relations.