Dell Inspiron One iO19-4270BGA 19-Inch Desktop (Polished Black) [Discontinued By Manufacturer] 2.8GHz Intel Pentium Dual-Core E5500 processor with 2MB cache 4GB Dual Channel DDR2 SDRAM at 800MHz (2 DIMMs) 500GB, 7200 RPM hard drive; 8x DVD+/-RW Drive Integrated ATI Radeon HD3200 Graphics and 18.5-inch Widescreen LCD Genuine Windows 7 Home Premium (64-Bit) operating system