Z Series N270280 CPU Intel? N270N280 Duo 1.6GHzDuo 1.66GHz Display 13.3" LED panel 1366*768 (16:9) System Memory 1G2G DDR II HDD 160G250G320G500G SATA DVD RW 9.5"DVD RW£¨Option£© 3G (Option) Bluetooth (Option) Sound System High definition Audio support 2.0 channel output2 Audio jacks Card Reader&slot 4-in-1 Card Reader support (MMC/SD/MS/MS Pro) LAN & WIFI 10/100MB LAN WIFI 802.11GB PC camera 1.3 Mega Pixels Power & Battery 6cell battery O.S. Windows? XP Windows? VISTA? Windows? 7 Dimension 325 x 225x 26 mm,1.75kg weight