Laptops For Dummies, 6th Edition
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Most laptops feature an Fn key. It’s the fun key, although Fn most likely stands for Function — but not the traditional computer keyboard function keys. On a laptop, the Fn key is used in combination with other keys to access special features. In a way, the Fn key combinations save the laptop from having an inordinate number of buttons and knobs, which is always a good thing.

Here’s a list of things the Fn key may do in combination with other keys on your laptop’s keyboard:

  • Turn the laptop’s speaker volume up and down

  • Mute the laptop’s speaker

  • Increase or decrease the screen brightness or contrast

  • Activate an external monitor for giving a presentation

  • Initiate Sleep mode

  • Hibernate the laptop

  • Eject an optical disc

  • Enable or disable the wireless networking adapter or enter Airplane Mode

  • Play, stop, pause, rewind, and advance media playing

  • Turn on the laptop’s webcam

  • Perform other special and specific tricks unique to the laptop

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Dan Gookin wrote the very first For Dummies book in 1991. With more than 11 million copies in print, his books have been translated into 32 languages. PCs For Dummies, now in its 12th edition, is the bestselling beginning PC book in the world. Dan offers tips, games, and fun at

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