The iMac "Core i5" 2.7 21.5" (Late 2013) is an all-in-one desktop computer from Apple. It features an Intel Core i5 4th Gen. processor with a speed of 2.70 GHz, 8 GB of RAM, and a 1 TB HDD for storage. The screen size is 21.5 inches and it comes with Intel Iris Pro Graphics 5200 for GPU capabilities. This model (A1418) is part of the Apple iMac series and is ideal for users looking for a seamless and efficient desktop computing experience.