Laptop Dell LATITUDE E6420 i5-2520M/4G/500G Processor: Intel Core i5-2520M Processor (3M Cache, 2.5 GHz) with Turbo Boost Technogy • Ram: 2x 2GB Dual-channel 1333MHz DDR3 SDRAM • HDD: 500GB SATA • Intel(R)HD 3000 Graphics • Optical : 8X DVD+ /-RW Drive • Wireless 1530 (802.11 a/b/g/n) • Bluetooth• Display :14.0" HD (1366x768) Anti-glare LED • 6-cell Battery • Carrying case .• OS: Dos