iMac 21.5 (2011) Overview
Introduction
The iMac 21.5 was first released in May 2011 and has undergone several updates and re-releases since then, with newer models featuring updated components and improved performance.
2012 Update
In 2012, the iMac 21.5 was updated with a slimmer design, improved display, and faster processors.
2013 Update
In 2013, the iMac 21.5 received a boost in performance with faster processors and improved graphics cards.
2014 Update
In 2014, the iMac 21.5 was updated with even faster processors, improved graphics cards, and a new Retina display option.
2015 Update
In 2015, the iMac 21.5 received a minor update with improved processors and faster storage options.
2017 Update
In 2017, the iMac 21.5 was updated with more powerful processors, better graphics, and support for up to 32GB of RAM.
2019 Update
In 2019, the iMac 21.5 received another update with a 4k Retina display option, more powerful processors, and improved graphics.
Target Display Mode
This iMac can be used as a display using Target Display Mode, using Thunderbolt. It's worth noting that Target Display Mode is not available on newer iMac models, such as the 2019 and later iMacs, as they no longer have a DisplayPort or Thunderbolt input. Additionally, using Target Display Mode requires a compatible cable and the other computer must also have a compatible port, such as Mini DisplayPort or Thunderbolt.
