Mac Basics to Advance Guide to macOS Sierra / High Sierra | Udemy
iMac 2011 vs. 2022... | MacRumors Forums
Apple iMac 21.5-inch June 2010 3.33GHz Intel Core 2 Duo (BTO/CTO) – UNICOM, Inc.
How to Install macOS High Sierra on an Unsupported Mac - YouTube
Download macOS High Sierra | MacUpdate
How to Prepare Your Mac for macOS High Sierra - The Mac Security Blog
Hey folks! I am looking for advice on potentially updating my trusty 2011 iMac in order to run a newer OS on it (ideally Monterey) and would love pointers on which components