Apple Wireless Keyboard the initial release. The new model now uses only two AA batteries instead of three originally. Additionally, Mac OS X 10.5.8 is now the minimum OS over the original Mac OS X 10.4.10. This model of keyboard became standard with new generation of iMacs introduced on the same day. On July 20, 2011, following the release of Mac OS X 10.7/OS X Lion, Apple updated the keyboard slightly, updating the label on the Exposé key to Mission Control and changing the Dashboard key to a Launchpad key. Keyboard layouts with a rectangular Enter key are available in American English and
Keyboard layout so the computer groups them together as the user types. Pressing the Han/Eng() key once switches between Hangul as shown, and QWERTY. There is another key to the left of the space bar for Hanja( or ) input. If using an ordinary keyboard without the two extra keys, the right Alt key will become the Ha/En key, and the right Ctrl key will become the Hanja key. Apple Keyboards do not have the two extra keys. Dubeolsik (두벌식; 2-set) is by far the most common and the sole national standard of Hangul keyboard layout in use in South Korea since