Access the Mac Task Manager
Activity Monitor is located in your /Applications/Utilities/ folder. The simplest way to get to Activity Monitor in Mac OS X is to use Spotlight as a keyboard shortcut of sorts.

  • Hit Command+Spacebar to bring up the Spotlight search field
  • Type in “Activity Monitor
  • Hit the Return key when “Activity Monitor” populates in the spotlight results
  • You are now in Activity Monitor where you can manage and manipulate tasks

 

Sumber : http://osxdaily.com/2010/08/15/mac-task-manager/