DESC: Product Features: Processor: Core i5 2.53 GHz; Display: 15.6 in. TFT Active Matrix LCD; Use: Home Use; Operating System: Microsoft Windows 7 Home Premium 64-bit; Hard Drive: 640 GB Serial ATA, 5400 RPM; Laptop Type: Thin and Light Laptop; Weight: 5.83 lb.; Processor Type: Core i5; Processor Speed: 2.53 GHz; Processor Manufacturer: Intel; Installed RAM: 6 GB; Storage Controller Type: Serial ATA; Hard Drive Capacity: 640 GB; Hard Drive Rotation Speed : 5,400 RPM; CD / DVD Type: DVD±RW; Screen Size: 15.6 in.; Display Tech: TFT Active Matrix LCD; Installed Video Memory: 1024 MB; Graphic Processor: ATI MOBILITY RADEON HD 550v; Operating System: Microsoft Windows 7 Home Premium 64-bit; Expansion Ports: 4 x USB 1.1; Networking Type: Bluetooth, Integrated 10/100 Network Card; Weight: 5.83 lb.; Family Line: Dell Inspiron