Compaq Presario SR5505F Desktop PC (2.2 GHz AMD Athlon X2 4200 Dual Core Processor, 1 GB RAM, 160 GB Hard Drive, DVD Drive, Vista Premium) (Discontinued by Manufacturer) Desktop PC with 2.2 GHz AMD Athlon X2 4200 dual-core processor, 1MB L2 cache 1024 MB PC2-6400 DDR2 SDRAM memory (1x1024MB, expandable to 4GB), 160 GB 7200RPM SATA hard drive NVIDIA GeForce 6150 SE graphics with TurboCache with 128MB dedicated graphics memory SuperMulti DVD Burner with LightScribe Technology Genuine Windows Vista Home Premium, dims in inches: 16.77 (L) x 6.67 (W) x 14.85 (H/D) approx., 21.25 lbs. approx.