Dell Inspiron 17R Reference Manual page 38

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Keyboard
Computer Keyboards are arrangements of square and rectangular labeled keys, each with one or more assigned functions. Press these keys to either type
letters and numbers or perform the tasks assigned to the keys. Different manufacturers arrange the keys on their keyboards slightly differently, but all
keyboards feature essentially the same keys.
Most keyboards have a number pad, a standard arrangement of numerical and mathematical keys, in addition to the normal numbered keys. Laptop
computers have a physical keyboards built into their chassis, but most exclude the number pad to save space. Some small-sized laptops and netbook
computers do not have a physical keyboard, and provide an on-screen keyboard.
Your keyboard provides different sets of keys to perform different sets of functions:
Alphanumeric keys for typing letters, numbers, punctuation, and symbols
Control keys for performing certain actions: <Ctrl>, <Alt>, <Esc>, and the Windows key
Function keys, labeled <F1>,< F2>, <F3>, and so on, for performing specific tasks
Navigation keys for moving the cursor around in documents or windows: <Home>, <End>, <Page Up>, <Page Down>, <Delete>, <Insert >, and
arrow keys
Numeric keypad of numbers grouped together like those on an adding machine (the numeric keypad on most laptop computers is integrated into the
alphabetic keys)
Related Information
Customizing Your Keyboard
Keyboard Connection Types
Backlit Keyboard
Changing the Input Language of Your Keyboard
Using the Numeric Keypad on a Laptop Computer
General Keyboard Shortcuts
Keyboard Not Working, Not Detected, or Working Intermittently
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