![]() On Apple Desktop Bus keyboards, a power key ( ◁), used to turn on computers that supported it (and to type the Mac three-finger salute).On the newest aluminum keyboard, these functions are accessed with the function keys, just like on the Apple laptops. Apple, since the release of the Pro Keyboard, provides these last four keys on desktop keyboards above the numeric keypad where status indicator lights are on many IBM PC keyboards. Notebook computers typically include additional assignments shared with function keys: reduce and increase brightness, volume up, volume down, mute, and eject ( ⏏).A Help key, instead of an Insert key, or on the most recent aluminum keyboards, a fn key, which toggles the function of the function keys between their default functions and special functions (volume control, Exposé, etc.).An "equals" key ( =) added to the numeric keypad.In Unicode, the Clear key is represented by U+2327 ⌧ X IN A RECTANGLE BOX, defined as "clear key". A Clear key, instead of a Num Lock key, on models with full numeric keypads, as these are dedicated to numeric input and not generally used for cursor control.Compact keyboards such as the bluetooth wireless aluminium keyboard and the built-in keyboards on all Intel-based Macintosh notebooks range from F1-F12 only, just like IBM PC keyboards. ![]() F17-F19 keys were introduced with the aluminium USB keyboard.
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