
The "open" (hollow) & separate "closed" (solid) Apple logo keys on the Apple II series, served functions similar to that of the Command key.Compared to their equivalents of the standard IBM PC keyboard layout the Command key and the Option key are located in reverse order. The key functions as a Meta key in Unix-like environments, and is semantically equivalent to the Windows key in Windows environments, although in common applications it performs the same function as the Windows Control key. The Command key (⌘), used in most Mac keyboard shortcuts.


Features different from other keyboards include: To serve the functionality of the Mac OS (and because of historical differences), the Apple Keyboard's layout differs somewhat from that of the more ubiquitous IBM PC keyboard, mainly in its modifier and special keys.
