2500 XL (250-4074) Keyboard Faxback Doc. #1156 The 101-key enhanced keyboard features a curved profile for easy typing. The keys have an audible click that indicates when they have been fully pressed. This keyboard is included with some versions of the computer. F (FUNCTION) KEYS--Program-specific. Their functions are determined by the software you are running. SPECIAL FUNCTION KEYS--Perform the general functions indicated on the keys. Specific functions might vary slightly in a given application program. TYPEWRITER KEYS--Feature auto-repeat; when you hold down a typewriter key, the keystroke repeats automatically until you release the key. DIRECTION KEYS--Used in application programs to control the movement of the cursor (or highlight) on the screen. NUMERIC KEYS--Enable you to type numbers in two ways. you can hold down SHIFT and press a number, or you can press NUM LOCK and then type numbers without pressing the SHIFT key.