Lenovo - 15.6" Ideapad Laptop - 4gb Memory - 320gb Hard Drive - Black AMD E1-1200 Dual-Core Processor with ATI Radeon HD 7310 graphics For enhanced operation/Microsoft Windows 7 Home Premium Edition 64-bit operating system 4GB DDR3 memory expandable to 8GB/Multiformat DVD&plusmn;RW/CD-RW drive/2-in-1 digital media reader/Built-in 10/100/1000 Ethernet LAN 320GB Serial ATA hard drive (5400 rpm)/Built-in webcam/ATI Radeon HD 7310 graphics 15.6" WXGA LED-backlit high-definition widescreen display/Built-in high-speed wireless LAN (802.11b/g/n)/6-cell lithium-ion battery 2 USB 3.0 and 2 USB 2.0 ports/HDMI/Weighs 5.7 lbs. and measures just 1.4" thin