Processor Intel Core i 3 2350M 2.3 G Hz, 3MB Cache Memory 4GB DDR3 RAM 2 x so DIMM slot Hard Drive 320GB SATA Optical Drive DVD Writer Software Operating System: Windows 7 Home Premium 64 Display 15.6 LED Backlit Screen Contrast Ratio 300/1 (Min.) Screen response rate 16ms Resolution: 1366 x 768 Graphics Intel HD 3000 Audio Integrated Speakers Sound card Input Devices Keyboard & Touchpad Networking Wireless networking (wifi) Power Supply Up to 4 hours Battery life Interfaces 2 x USB (Universal Serial Bus) 3.0, 2 x USB (Universal Serial Bus) 2.0 Card Reader (SD, SDHC, MMC, MS & MS-Pro) Warranty / Miscellaneous 1 Year Manufacturer Warranty Webcam