Common methods of Internet access in homes include dial-up, landline broadband (over coaxial cable, fiber optic or copper wires), Wi-Fi, satellite and 3G/4G technology cell phones. Public places to use the Internet include libraries and Internet cafes, where computers with Internet connections are available. There are also Internet access points in many public places such as airport halls and coffee shops, in some cases just for brief use while standing. Various terms are used, such as "public Internet kiosk", "public access terminal", and "Web payphone". Many hotels now also have public terminals, though these are usually fee-based. These terminals are widely accessed for various usage like ticket booking, bank deposit, online payment etc. Wi-Fi provides wireless access to computer networks, and therefore can do so to the Internet itself. Hotspots providing such access include Wi-Fi cafes, where would-be users need to bring their own wireless-enabled devices such as a laptop or PDA. These services may be free to all, free to customers only, or fee-based. A hotspot need not be limited to a confined location. A whole campus or park, or even an entire city can be enabled.
Grassroots efforts have led to wireless community networks. Commercial Wi-Fi services covering large city areas are in place in London, Vienna, Toronto, San Francisco, Philadelphia, Chicago and Pittsburgh. The Internet can then be accessed from such places as a park bench. Apart from Wi-Fi, there have been experiments with proprietary mobile wireless networks like Ricochet, various high-speed data services over cellular phone networks, and fixed wireless services. High-end mobile phones such as smartphones in general come with Internet access through the phone network. Web browsers such as Opera are available on these advanced handsets, which can also run a wide variety of other Internet software. More mobile phones have Internet access than PCs, though this is not as widely used. An Internet access provider and protocol matrix differentiates the methods used to get online.
An Internet blackout or outage can be caused by local signaling interruptions. Disruptions of submarine communications cables may cause blackouts or slowdowns to large areas, such as in the 2008 submarine cable disruption. Less-developed countries are more vulnerable due to a small number of high-capacity links. Land cables are also vulnerable, as in 2011 when a woman digging for scrap metal severed most connectivity for the nation of Armenia. Internet blackouts affecting almost entire countries can be achieved by governments as a form of Internet censorship, as in the blockage of the Internet in Egypt, whereby approximately 93% of networks were without access in 2011 in an attempt to stop mobilization for anti-government protests.
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Other articles related to "access":
... Highways 26 and 16 provide access to Interstate 94 ... Highway 16 provides access to the Milwaukee metro area, and highway 19 provides access to the Madison metro area ...
... To speed up access to resources (using caching) ... Access enhancement/restriction To apply access policy to network services or content, e.g ... To access sites prohibited or filtered by your ISP or institution ...
... Access control is the ability to permit or deny the use of a particular resource Access (comics), a comic book character Access (economics) Access (group), a Japanese musical group Access (credit card ...
... for the Security Service, was given access to MI5's records to prepare a book for the centenary of the organisation ... Andrew had access to all files created by MI5 since it was founded but was limited in what he could publish ... He was required to enroll in the Security Service in order to be given access to the archives, which drew criticism from some historians and commentators prior to the writing of the book ...
... Virtually any kind of XML validation requires access to the document in full ... some kinds of XML processing simply require having access to the entire document ... XSLT and XPath, for example, need to be able to access any node at any time in the parsed XML tree ...
Famous quotes containing the word access:
“Whilst the rights of all as persons are equal, in virtue of their access to reason, their rights in property are very unequal. One man owns his clothes, and another owns a country.”
—Ralph Waldo Emerson (18031882)
“Make thick my blood,
Stop up th access and passage to remorse,
That no compunctious visitings of nature
Shake my fell purpose.”
—William Shakespeare (15641616)
“The professional celebrity, male and female, is the crowning result of the star system of a society that makes a fetish of competition. In America, this system is carried to the point where a man who can knock a small white ball into a series of holes in the ground with more efficiency than anyone else thereby gains social access to the President of the United States.”
—C. Wright Mills (19161962)