Compaq Presario PC AMD Athlon X2 4450e Dual Core 3 GB 250 GB DVD Vista FQ582AAThis is a "new old stock" Compaq PC. Still wrapped in original packaging (I peeked in just to make sure). It looks like it was built circa 2009. Obviously the OS is obsolete (Vista). Not sure how Microsoft treats these old machines when they come online. Please take a careful look at the photos and let me know if you have any questions.