The MacOS Sierra Compatibility List | OSXDaily
Identify your iMac model - Apple Support
Latest macOS compatibility chart : r/MacOS
Vectorworks Operating System Compatibility List - Knowledgebase - Vectorworks Community Board
Leaping Into a System Upgrade - The New York Times
Identify your iMac model - Apple Support
Vectorworks Operating System Compatibility List - Knowledgebase - Vectorworks Community Board
macos - Mac Pro 4,1 (Early 2009) Sierra Compatibility? - Ask Different
The MacOS Sierra Compatibility List | OSXDaily
How to Install macOS Catalina on an Unsupported Mac - MacRumors
Macs Able to Run macOS Sierra Remain Compatible With High Sierra - MacRumors
macOS - Wikipedia
The MacOS Sierra Compatibility List | OSXDaily
macOS compatibility: What macOS versions can my Mac run? | Macworld
MacOS High Sierra Compatible Macs List | OSXDaily
MacOS Mojave Compatible Macs List | OSXDaily
OS X El Capitan Compatible Macs and System Requirements: EveryMac.com
A-Tech 32GB (4 x 8GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 27-inch (Quad-Core i5/i7) | 204-Pin SODIMM Max Memory Upgrade Kit at Amazon.com
How to Prepare Your Mac for macOS High Sierra - The Mac Security Blog
iMac (Early 2009) | Low End Mac
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Answered]What macOS/OS X Can My Mac Run?
iMac 21.5" Late 2009 (10,1) - CPU Upgrade E8600 | MacRumors Forums
Mac OS 9 - Wikipedia
Apple macOS Sierra: how about that compatibility list? (2023)
