Lenovo Thinkpad Edge 68855tu 15.6 Notebook - Intel Core I3 I3-3120m 2.50 Ghz Windows 7 Professional 64 preinstalled through downgrade rights in Windows 8 Pro 64-bit Intel Core i3-3120M 2.5GHz Processor 4GB PC3-12800 DDR3 Memory 320GB 7200RPM Hard Drive DVD+/-RW Writer