The Lenovo Thinkpad Edge E520 15.6" HD Laptop is ultimately designed for the business user. The sophisticated laptop has a 2nd generation Intel Core Processor i 3-2310 & runs the Genuine Windows 7 Professional 64-bit operating system for enhanced performance & protection. The E520 is now 13% thinner than previous generations. Clever combination The powerful & lightweight Thinkpad Edge has 4GB of RAM & a 500GB hard drive that will store all your multimedia files! in addition, the simplified Thinkpad Edge has a 15.6" (16:9 HD, 1366x 768, LED-backlit) widescreen display, DVD-RW, & Wi FI for easy Internet access from your home/business wireless network. The laptop also has a 720p HD webcam allowing you to keep in touch with conacts wirelessly. The Lenovo Thinkpad Edge E520 15.6" HD Laptop has a touch of personality & everything the savvy business user needs.