The computer has the Apple MacOS X 10.4. The software includes is: Apple iCal , Apple Safari , Microsoft Office 2004 for Mac Test Drive , iWorkÃ06 (30 days trial) , Apple XCode Developer Tools , Photo Booth , FileMaker Pro (Trial) , Plasq Comic Life , Apple Address Book , Front Row , Apple QuickTime , Apple Mac OS X Mail , Apple iChat AV , Apple iLife '06 , Apple Spotlight , OmniOutliner , Drivers & Utilities , Apple Dashboard , Apple DVD Player.