OS X
Word list · O
Use to refer to older versions of Apple’s operating system prior to macOS.
Capitalize both OS and X. Do not use for current systems.
When referring to a specific product or interface, match its actual labels and official names.
Use to refer to older versions of Apple’s operating system prior to macOS.
Capitalize both OS and X. Do not use for current systems.
When referring to a specific product or interface, match its actual labels and official names.