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Review: macOS Catalina 10.15 is what Apple promised the Mac could be, and is a crucial upgrade | AppleInsider
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Amazon.com: SYNERLOGIC Mac OS (Monterey/Big Sur/Catalina/Mojave) Keyboard Shortcuts, Clear Vinyl Sticker, Long-Lasting No-Residue Adhesive, Compatible with Any (11 to 16-inch) MacBook Air or Pro with Intel CPU : Everything Else
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Macbook Pro 2011 A1278 / macOS Catalina / 8GB RAM / 500GB HDD / Intel Core i5, Computers & Tech, Laptops & Notebooks on Carousell
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Amazon.com: SYNERLOGIC (M1+Intel) Mac OS Monterey/Big Sur/Catalina/Mojave Keyboard Shortcut Sticker - Black Vinyl, No-Residue Adhesive, for 13"-16" MacBook Air/Pro iMac Mac Mini : Electronics
![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. 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.](https://preview.redd.it/659ugq09ypm41.jpg?auto=webp&s=8b727a762b2f66ba0e37981f2c6d3fcbc4da655a)