Wi-Fi - Revision history

Karl Jones: /* See also */

2016-10-12T18:39:38Z

‎See also

Karl Jones at 18:36, 12 October 2016

2016-10-12T18:36:21Z

Karl Jones: /* External links */

2016-04-25T01:26:47Z

‎External links

Karl Jones at 15:40, 10 September 2015

2015-09-10T15:40:55Z

Karl Jones at 15:35, 10 September 2015

2015-09-10T15:35:46Z

Karl Jones: /* See also */

2015-09-03T12:57:22Z

‎See also

Karl Jones: Computer security

2015-08-24T12:22:14Z

Computer security

Karl Jones: /* External links */

2015-08-24T12:17:16Z

‎External links

Karl Jones: etc

2015-08-24T12:16:52Z

etc

New page

''Wi-Fi'' (or '''WiFi''') is a local area wireless computer networking technology that allows electronic devices to network, mainly using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands.

== Definition ==

The Wi-Fi Alliance defines Wi-Fi as any "wireless local area network" (WLAN) product based on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards". However, the term "Wi-Fi" is used in general English as a synonym for "WLAN" since most modern WLANs are based on these standards. "Wi-Fi" is a trademark of the Wi-Fi Alliance. The "Wi-Fi Certified" trademark can only be used by Wi-Fi products that successfully complete Wi-Fi Alliance interoperability certification testing.

== Devices ==

Many devices can use Wi-Fi, e.g. [[Personal computer|personal computers]], video-game consoles, smartphones, digital cameras, tablet computers and digital audio players.

These can connect to a network resource such as the Internet via a wireless network access point.

Such an access point (or hotspot) has a range of about 20 meters (66 feet) indoors and a greater range outdoors.

Hotspot coverage can be as small as a single room with walls that block radio waves, or as large as many square kilometres achieved by using multiple overlapping access points.

== Security ==

Wi-Fi can be less secure than wired connections, such as Ethernet, precisely because an intruder does not need a physical connection. Web pages that use TLS are secure, but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router's password. The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks.

== See also ==

* [[Mobile operating system]]

== External links ==

* [ Wi-Fi] @ Wikipedia

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 * [[Bluetooth]]
 * [[Mobile operating system]]
 * [[Radio]]

@@ Line 35: / Line 35: @@
 * [[Radio]]
 * [[Wireless]]
 == External links ==

← Older revision		Revision as of 01:26, 25 April 2016
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	* [https://en.wikipedia.org/wiki/Wi-Fi Wi-Fi] @ Wikipedia		* [https://en.wikipedia.org/wiki/Wi-Fi Wi-Fi] @ Wikipedia
		+
		+	[[Category:Computer hardware]]
		+	[[Category:Software]]
		+	[[Category:Wireless]]

← Older revision		Revision as of 15:40, 10 September 2015
Line 1:		Line 1:
−	''Wi-Fi'' (or '''WiFi''') is a local area wireless computer networking technology that allows electronic devices to network, mainly using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands.	+	'''Wi-Fi''' (or '''WiFi''') is a local area wireless computer networking technology that allows electronic devices to network, mainly using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands.

	== Definition ==		== Definition ==

@@ Line 17: / Line 17: @@
 == Security ==
-Wi-Fi can be less secure than wired connections, such as Ethernet, precisely because an intruder does not need a physical connection. Web pages that use TLS are secure, but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router's password. The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks.
+Wi-Fi can be less secure than wired connections, such as [[Ethernet]], precisely because an intruder does not need a physical connection.
 See [[Computer security]].
@@ Line 23: / Line 31: @@
 == See also ==
 * [[Mobile operating system]]
 * [[Wireless]]

← Older revision		Revision as of 12:22, 24 August 2015
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	Wi-Fi can be less secure than wired connections, such as Ethernet, precisely because an intruder does not need a physical connection. Web pages that use TLS are secure, but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router's password. The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks.		Wi-Fi can be less secure than wired connections, such as Ethernet, precisely because an intruder does not need a physical connection. Web pages that use TLS are secure, but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router's password. The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks.
		+
		+	See [[Computer security]].

	== See also ==		== See also ==

← Older revision		Revision as of 12:17, 24 August 2015
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	== External links ==		== External links ==

−	* [ Wi-Fi] @ Wikipedia	+	* [https://en.wikipedia.org/wiki/Wi-Fi Wi-Fi] @ Wikipedia