LENOVO H535 57RF0377 DESKTOP - A8-5500 (3.2GHz) - 6GB RAM - 1TB HDD - Windows 8.1 - DVD -RW Processor: AMD A8-5500 Processor (3.2GHz) Operating system: Windows 8.1 Standard 64 - English Memory: 6GB PC3-12800 DDR3 SDRAM 1600 MHz Hard Drive: 1TB 7200RPM Hard Drive Graphics: Radeon HD 7560D ; Optical Drive: DVD-RW