operating sys : ms win vista ultimate sp1 operating mode: 64-bit qty : single pk pkg type : oem product features:- * win vista service pack 1 (sp1) is an update to win vista along with improvements delivered to users * sp1 contains changes focused on addressing specific reliability & performance issues * supports new types of hw adding support for several emerging standards * makes it easier for it administrators to deploy & manage win vista * quickly find anything reqd with win aero, win flip 3d navigation, instant search & win photo gallery * take the entertainment experience with fast access to music & dvd movie playback without waiting for the pc to boot with win hotstart * protect personal data, programs &settings against loss with complete pc backup & restore * rely on win bitlocker drive encryption to better protect data min sys reqs:- cpu: 800mhz (1ghz 64-bit rec); mem: 512mb system mem (1gb rec) hdd: 40gb with at least 15gb of available space support for super vga graphics (directx 9 graphics with wddm driver, 128mb of graphics mem (min), pixel shader 2.0 in hw, 32-bits per pixel)