Processor, Operating System and Memory Operating system installed Genuine Windows Vista® Home Premium 64-bit edition with Service Pack 1 Processor Intel® Core™2 Duo Processor T5850 • 2.16 GHz, 2 MB L2 Cache, 667 MHz Front Side Bus Chipset Intel® GM965 Express Chipset Standard memory 4 GB (2 x 2048 MB) Memory type PC2-5300 DDR2 SDRAM memory Memory slots 2 SoDIMMs (200-pin) Internal drives Internal hard disk drive 640 GB Hard disk controller SATA Hard disk drive speed (7200 rpm) Optical drive type Slot-load SuperMulti DVD Burner Optical drive speed 8x DVD±R, 8x DVD+RW, 6x DVD-RW, 6x DVD±R DL, 5x DVD-RAM, 8x DVD-ROM, 24x CDR, 24x CDRW, 24x CD-ROM Software Software included HP TouchSmart Music - Create playlists with your favorite music; HP TouchSmart Video - Watch, record and upload your personal videos using touch; HP TouchSmart Photo - Share your fun and memorable moments in life with family and friends; HP TouchSmart RSS Feeds - Get the latest news right at your fingertips; HP TouchSmart Browser - Browse the web in a whole new way; HP TouchSmart Calendar - Manage your busy schedule and stay in touch with family; HP TouchSmart Notes - Quick and easy text and voice notes right at your fingertips; Includes Norton Internet Security™ 2008. Protects your PC and your identity when you email, bank and shop online. 60 days of protection updates included