The Compaq Presario CQ56-251SA 15.6 Laptop is powered by an energy-efficient AMD V-series V160 processor and comes preloaded with Microsofts 64-bit Genuine Windows 7 Home Premium operating system. This great-value computer also offers 2 GB of RAM and a 250 GB hard drive.Although its tremendously affordable, the Compaq Presario CQ56-251SA notebook doesnt compromise on the features you need for enjoyable computing. It sports a generous 15.6-inch widescreen LED-backlit HP BrightView display, with High Definition resolution and powerful ATI Mobility Radeon HD 4250 graphics to accelerate video playback while consuming minimal power.In fact, thanks to the battery sipping AMD processor and integrated graphics, youll enjoy up to 6 hours of battery life from the included 6-cell lithium-ion battery. Plenty to get you through a day of classes or a long train journey!Other essential features include three USB ports, an integrated 1.3mp webcam and microphone, Dolby Advanced Audio and built-in speakers, a multi-format memory card reader, and headphone and microphone ports. It almost goes without saying that the Compaq Presario CQ56-251SA features integrated WiFi for wireless networking.With its stylish design and affordable price-tag, the Compaq Presario CQ56-251SA 15.6 Laptop is sure to appeal to a wide range of home users!