Apple iMAC All In One A1225 24" Desktop (Intel Core 2 Duo 2.4Ghz, 320GB Hard Drive, 4096Mb RAM, DVDRW Drive, OS X 10.5.2) Processor 2.4 GHz Intel Core 2 Duo Memory 1 GB 667 MHz DDR2 SDRAM Graphics ATI Radeon HD 2600 PRO Software OS X 10.5