IdeaPad S12 - Intel Atom Processor N270 with single-core, hyperthreading technology, 533MHz system bus, and 512KB L2 cache, Microsoft Windows XP Home Edition, 12.1"WXGA, LED backlight, wedge type, 1280x800pixel, WXGA (200 nit, 250g), Mobile Intel 945GSE Experss Chipset, 160GB 5400rpm, 1GB PC2-5300 667MHz DDR2, Up to 2GB PC2-5300/667MHz (Windows XP Home models can only be shipped with maximum 1GB of memory), 1.3 megapixel integrated camera, 2 speakers, 10/100 Ethernet,Wireless bg, Norton Internet Secuity, 6-cell Li-Ion battery up to 6 hours, Included Software: Lenovo OneKey Recovery, Adobe Reader, Windows Live Toolbar, Lenovo Energy Management Software, Veriface Facial Recognition, Lenovo Quick Start, DDNI; Expansion: 3 x USB2.0 ports, 1* 34mm Express Card slot, 4 x1 card reader(SD/MMC/MS/MS pro) RJ45, VGA, Single Built in MIC with Echo Cancellation and noise reduction; Headphone; 6-cell Li-ion Battery up to 6 hours