HP Compaq Presario SR5411NL PC, Compaq Presario. Processor frequency: 2.2 GHz, Processor family: AMD Athlon, Processor model: 4400+. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Hard drive interface: Serial ATA, Hard drive speed: 7200 RPM. Discrete graphics adapter model: NVIDIA GeForce 6150 SE, Maximum graphics adapter memory: 831 MB. Operating system installed: Windows Vista Home Premium