Apple iMac 21.5" 3rd Gen Quad Core i5-3330S 2.7GHz 8GB 1TB WiFi...
How can i update my old mac to mac os catalina or at least os X yosemite : r/mac
Amazon.co.jp: Apple iMac 21.5" A1418 Late 2012 Integrated OS Catalina 10.15.7 [3rd Generation i5 8G 1TB Wireless BT Camera 21.5" ] Bluetooth Good : Computers
Mid-2012 MacBook Pro Running Catalina - YouTube
macOS Catalina installeren: zo bereid je je voor op deze update