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Most of the time, this does not matter. However, some programs assign separate functions to the regular and numeric pad Enter keys on the full-sized keyboard. Using the Fn key, you can simulate the separate key, as follows: Press Fn and Enter simultaneously to simulate the Enter key on the numeric pad of the enhanced keyboard. Pressing the Fn key simultaneously in combination with one of the specially marked keys allows you to emulate a full-size keyboard. 98 98 98 Using the keyboard Ctrl, Fn, and Alt keys (Sample Illustration) Ctrl, Fn, and Alt keys The Ctrl, Fn, and Alt keys do different things depending on the program you are using. For more information, see your program documentation. Function keys The function keys (not to be confused with the Fn key) are the 12 keys at the top of the keyboard. (Sample Illustration) Function keys F1 through F12 are called function keys because they execute programmed functions when pressed. Used in combination with the Fn key, function keys marked with icons execute specific functions on the computer. For example, Fn+F9 turns the TouchPad™ ON/OFF. For more information, see “Hot key functions” on page 188. Special Windows® keys Windows® key Application key (Sample Illustration) Special Windows® keys Your computer’s keyboard has one key and one button that have special functions in Windows®: . Windows® key—Opens the Start menu . Application key—Has a similar function as the secondary mouse button Learning the Basics 99 Using the keyboard Overlay keys This section applies to the C640 series. The keys with gray numbers and symbols on the front of them form the numeric and cursor overlay. This overlay lets you enter numeric data or control the cursor as you would using the 10-key keypad on a desktop computer’s keyboard. (Sample Illustration) Numeric and cursor control overlay Using the overlay to type numeric data This section applies to the C640 series. The keys with the numbers on their right front are the numeric overlay keys. To turn the numeric overlay on, press Fn and F11 simultaneously. The numeric overlay light glows when the numeric overlay is on. To disable the numeric overlay, hold down the Fn key and press F11 again. The numeric overlay light goes out. NOTE NOTE Learning the Basics Learning the Basics Starting a program Using the overlay for cursor control NOTE This section applies to the C640 series. The keys with the gray arrows and symbols on their left front are the cursor control overlay keys. To turn the cursor control overlay on, press Fn and F10 simultaneously. The cursor control overlay light glows when the cursor control overlay is on. To disable the cursor control overlay, hold down the Fn key and press F10 again. The cursor control overlay light goes out. Starting a program The easiest way to start a program is to double-click the name of the file that contains the information you want to work on. To find the file, use the Start menu or Windows® Explor...

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