On May 3, 2011 Apple introduced 6 of 7 new iMac All in One computers and on August 8, 2011 the 7th and last Model
iMac 21.5 Inch Late 2011 3.1 GHz Core i3 2100 Processor Model A1311 EMC 2496 was introduced.
Model A1311 Models iMac 21.5 Inch Mid 2011 2.5 GHz Core i5 2400S Processor Model A1311 EMC 2428,
iMac 21.5 Inch Mid 2011 2.7 GHz Core i5 2500S Processor Model A1311 EMC 2428,
iMac 21.5 Inch Mid 2011 2.8 GHz Core i7 2600S Processor Model A1311 EMC 2428,
iMac 27 Inch Mid 2011 2.7 GHz Core i5 2500S Processor Model A1312 EMC 2429,
iMac 27 Inch Mid 2011 3.1 GHz Core i5 2400 Processor Model A1312 EMC 2429 and
The iMac Core i5 2.7 GHz 27 inch Core i5 2400 processor Processor
Model A1312 EMC 2429.