Don't have Telegram yet? Try it now!
https://ohjeongwook.com/2009/01/16/%eb%a7%a5-mac-os-x-%ec%bb%a4%eb%84%90%ec%9d%80-%eb%a7%88%ed%95%98mach-%ec%bb%a4%eb%84%90%ec%9d%b4-%ec%95%84%eb%8b%88%eb%8b%a4/
[맥] Mac OS X 커널은 마하(Mach) 커널이 아니다