Mac OS X Jaguar (10.2)
Reign: August 2002-October 2003
Key new capabilities: Quartz Extreme graphics-rendering engine, systemwide contacts management (Address Book), Unix-based (CUPS) printer drivers, support for Samba open source protocol for Windows networks, instant-messaging client (iChat), major attempt to include accessibility services, handwriting recognition engine for use with pen tablets, discontinuation of the original Mac's "happy Mac" icon at startup
Notes: This was the first version of OS X to be officially branded with its code name. It was also the first OS X version to garner a strongly positive reception.