Operating system: LINUX / Windows XP Memory: DDR2 1G Hard drive: 2.53, 160G HDD Mouse: Touch pad, External USB Mouse Keyboard: U.S 82 key with embedded numeric keypad AC Adapter : :Input: 100-240V ~ 50-60 Hz 1.7A Output: 19V 3.5A Camera: 1.3M Size254*185*31mm Weight1.5kg Built-In Stereo Speakers: Realtek ALC662GR Rechargeable Battery: 10.7V, 2200mAh USB 2.0: 2 USB2.0 port LAN: 10/100Base-TX Wireless LAN: 802.11b/g Processors : ATOM 1.6G Front Side Bus Speed: 533 MHZ North/South Bridge Chipset: 82801GBM +945GMS Screen Size (Diagonal): 12.1†Screen Format: 16:10 Resolution (VGA TFT display): 1280(W)*800(H) Pixel Size (horizontal x vertical): 0.2175(H)*0.2175(V) Brightness: 220cd/m^2 Color: 262K colors Backlight Unit: LED*30