Mac Is Not Detecting an External Display … - Apple Community Mac Is Not Detecting an External Display and How to Fix It Try the following fixes, in order, to try to get your Mac to recognize the external display Double-check your cables The first thing you should do is make sure your cables are both correct and secure
Mac 电脑小白应该了解哪些东西？ - 知乎 Mac 会节省你不停的系统维护、清理杀毒、升级驱动的时间，让你专注做自己真正重要的事。 篇一、Mac? macOS? 苹果公司为自己的一系列电脑（包括 iMac、Mac mini、Macbook、Mac Pro 等）取的名字统称 Mac。 Mac 用的专属操作系统叫 macOS （WWDC16上，OS X 正式更名为 macOS）。
How to find your Macs model and age? - Apple Community For PowerPC Macs, Mac OS X 10 4 11 and earlier offer Classic compatibility, and on certain 2003 and earlier Macs dual booting on Mac OS X 10 5 Mac OS 9: Mac models capable of dual-booting into 1… - Apple Community No Mac may run an older version of Mac OS 9 than was prebundled with it