Lenovo IdeaPad U550, User Manual

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Chapter 3. Using the Internet
As a global network, the Internet connects computers worldwide,
providing services such as e-mailing, information searching, electronic
commerce, Web browsing and entertainment.
You can connect the computer to the Internet in the following ways:
Wired connection: uses physical wiring to connect.
Wireless network technology: connect without wiring.
Wired connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Wired connections are a reliable and safe way to connect the computer to
the Internet. Generally, the following two accessing methods are widely
used.
Cable Cable Internet services use a cable modem connected to
the residential cable TV line.
DSL DSL is a family of related technologies that bring
high-speed network access to homes and small
businesses over ordinary telephone lines.