Lenovo ThinkCentre A58 + 22" + RAM, 3.16 GHz, Intel® Core™2 Duo, 2 GB, 320 GB, DVD±RW, Windows Vista Business Lenovo ThinkCentre A58 + 22" + RAM. Processor frequency: 3.16 GHz, Processor family: Intel® Core™2 Duo, Processor model: E8500. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 320 GB, Optical drive type: DVD±RW. Discrete graphics card model: AMD Radeon HD 3470. Operating system installed: Windows Vista Business. Chassis type: Tower. Product type: PC. Weight: 11.2 kg. Product colour: Black