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Mac OS CATALINA on a 2011 IMAC. I kept hearing it won't work because of the video card and would make my Mac unable to use but it is working for me.
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Apple iMac-2014 (27 in, Catalina OS 10.15, 3.2 GHz Intel quad core) - computers - by owner - electronics sale -...
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Review: macOS Catalina 10.15 is what Apple promised the Mac could be, and is a crucial upgrade | AppleInsider
iMac Mid 2011 GPU acceleration problem after installing Catalina dosdude1 Patcher 2020 | MacRumors Forums
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