Apple iMac MF883LL/A 21.5-Inch Desktop (Discontinued by Manufacturer) 1.4 GHz Dual-Core Intel Core i5 Processor (Turbo Boost up to 2.7GHz) with 3MB Shared L3 Cache 500 GB Serial ATA Drive 8 GB 1600MHz DDR3 SDRAM 21.5-Inch (diagonal) LED-backlit IPS Display; 1920-by-1080 Resolution; Intel HD Graphics 5000 Mac OS X Yosemite