Lenovo B450 Notebook - Manual (Page 40)

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Chapter 3. Using the Internet
Wireless connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Wireless connection provides mobile access to the Internet, allowing you to
stay online anywhere the wireless signal covers.
Wi-Fi Wi-Fi networks cover a small physical area, like a home,
office, or small group of buildings. An access point is
necessary for the connection.