2009 iMac Unibody
The Intel-based iMac is a series of Macintosh desktop computers designed, manufactured and sold by Apple Inc. since 2006. It is one of three desktop computers in the current Macintosh lineup, serving as an all-in-one alternative to the Mac Mini, and sits below the performance range Mac Pro. It was sold alongside the Xeon-based iMac Pro from 2017 to 2021.
Pre-2009 iMac models featured either a white polycarbonate enclosure or an aluminum enclosure. The October 2009 iMac model featured a unibody aluminum enclosure, a version of which can still be seen on the current model. The current iMacs released since October 2012 also feature a much thinner display, with the edge measuring just 5 mm.
The Intel-based iMac was succeeded by the iMac with Apple silicon beginning in 2021 as part of the Mac transition to Apple silicon. On April 20, 2021, Apple discontinued the 21.5-inch Intel iMac with 4K Retina Display following the release of a 24-inch model based on the Apple M1 processor.