... more compatibility touch support more perfect 1,Operating system Windows 72,CPU Intel Atom N450 1.66MHz 512KB second level cache 667MHz ... 160G / 250 / 320G5,Webcam built in 1.3M high definition web camera6,Screen size 10.1 inch TFT LED WideScreen Standard Resolution 1024 ... ,Expansion interface 3* USB 2.0, VGA, Audio Input/output,1*SD/MMC card reader9,Battery Use about 2.5 hours10 ...