One of the most striking changes in OS X is its reworked menus. You’ll need to adjust to the new locations of often-used menu commands, especially in the Finder. And remember to check the Finder’s revised keystroke shortcuts. For example, command-M now minimizes a window instead of creating an alias. (The keystroke for creating an alias changes to command-L). And command-N, which since early Mac times has been used to create a new folder within a Finder window, now opens a new Finder window instead. (To create a new folder, you now type shift-command-N.
The Apple Menu Reborn
OS X reinvents the Apple menu to combine the functions from OS 9’s Special menu and the old Location Manager control panel, together with access to recently used documents and applications and a few new features. Shortcuts to system and Dock preferences are here, as is OS X’s user-logout function. Also in the menu is an enhanced Force Quit feature. In OS 9, you could — if you were lucky — force-quit a single application that had crashed by pressing command-option-escape. In OS X, pressing this keystroke combination or selecting Force Quit from the Apple menu displays a list of all running applications from which you can force any program to quit.