Intel® Pentium® Intel Pentium DisplayPort 1 HP Compaq Pro Compaq 6000 Pro, 3 GHz, Intel® Pentium®, 3 GB, 500 GB, DVD-RW, Windows 7 Professional HP Compaq Pro Compaq 6000 Pro. Processor frequency: 3 GHz, Processor family: Intel® Pentium®, Processor model: E5700. Internal memory: 3 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Optical drive type: DVD-RW. Operating system installed: Windows 7 Professional, Operating system architecture: 32-bit. Power supply: 320 W. Chassis type: Micro Tower. Product type: PC. Weight: 20.5 lbs (9.3 kg). Product color: Black