Toshiba Satellite Pro 6000 Series - Manual (Page 282)

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Wi-Fi — A trademarked term by the Wireless Capability Ethernet
Alliance which stands for Wireless Fidelity. Wi-Fi is another term
for the IEEE 2.11b communication protocol to permit an Ethernet
connection using wireless communication components.
World Wide Web (www) — The worldwide network of Web sites
linked together over the Internet. A user of the Web can jump from
site to site regardless of the location of the computer hosting the site.
See also Internet.