Identify your iMac model - Apple Support
iMac (21.5-in, Mid 2011) 2.7GHz i5, 16GB RAM, 1TB Storage, Computers & Tech, Desktops on Carousell
macOS - Wikipedia
macOS High Sierra Compatible Macs and System Requirements: EveryMac.com
Identify your iMac model - Apple Support
MacOS Monterey: Is your computer compatible with Apple's new OS? Here's how to find out - CNET
Finale v27 is fully compatible with macOS 12 and Windows 11 - Finale
Mac OS 9 - Wikipedia
Identify your iMac model - Apple Support
How to upgrade your old MacBook Air laptop to the latest compatible macOS - install a new macOS - YouTube
Aanrader: Bereid je Mac voor op macOS Mojave - appletips
How to upgrade my Mid 2011 iMac to latest OSX | MacRumors Forums
Latest macOS compatibility chart : r/MacOS
![Answered]What macOS/OS X Can My Mac Run?](https://iboysoft.com/images/en-news/what-os-can-my-mac-run/summary-what-os-can-my-mac-run.png "Answered]What macOS/OS X Can My Mac Run?")
Answered]What macOS/OS X Can My Mac Run?
How to Install macOS Catalina on an Unsupported Mac - MacRumors
The MacOS Sierra Compatibility List | OSXDaily
macOS compatibility: What macOS versions can my Mac run? | Macworld
A-Tech 16GB (2x8GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
MacOS High Sierra Compatible Macs List | OSXDaily
How to Install macOS Ventura or Sonoma on Unsupported Macs, for Security Improvements - The Mac Security Blog
MacOS High Sierra Compatible Macs List | OSXDaily
Vectorworks Operating System Compatibility List - Knowledgebase - Vectorworks Community Board
Upgrade Mid 2011 iMac 21.5 beyond High Sierra? | MacRumors Forums
Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini RAM at Amazon.com
