Apple Mac OS X (10.4 or higher).

苹果Mac OS X(10.4或更高版本)。

youdao

However, the language is alive and well, as the core APIs for the Apple Mac OS X operating system were developed in Objective-C.

无论如何，这种语言还存在，并且Apple Mac OS X操作系统的核心api都是用Objective - c开发的。

youdao

A: Apple doesn't sell or license its Mac OS X operating system for use on non-Apple hardware.

答：苹果并不出售或授权其Mac OS X操作系统用于非苹果公司生产的硬件。

youdao

Safari is built expressly for Apple's Mac OS X.

FORBES: Apple Eyes Microsoft's Turf

All three machines will boot natively to Apple's new operating Mac OS X, but not to the older Mac OS 9.

FORBES: Magazine Article

He returned to Apple in 2009 to lead Mac OS X engineering.

FORBES: Apple CEO Cook Expands His Executive Team, Hardware Engineering Chief Mansfield Forgoes Retirement