Information about Internet Access
Internet access refers to the means by which users connect to the Internet.
Common methods of internet access include dial-up, landline (over coaxial cable, fiber optic or copper wires), T- lines, Wi-Fi, satellite and cell phones.
Public places to use the Internet include libraries and Internet cafes, where computers with Internet connections are available. Some libraries provide stations that provide facilities for hooking up public-owned laptops to local area networks (LANs). There are also wireless Internet access points in many public places like airport halls, in some cases just for brief use while standing. These Access points may provide coin operated computers or Wi-Fi hot spots* that enable specially equipped laptops to pick up internet service signals. 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.
- 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 a would-be user needs 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. The whole campus or park, or even the entire city can be enabled. Grassroots efforts have led to wireless community networks.
Broadband access over power lines was approved in 2004 in the United States in the face of stiff resistance from the amateur radio community. The problem with modulating a carrier signal below 100 MHz onto power lines is that an above-ground power line can act as a giant antenna and jam long-distance radio frequencies used by amateurs, seafarers and others. A recent discovery, called "E-Line" allows propagating much higher frequency carriers, from 100 MHz through at least 10 GHz, onto a single conductor of a power line and offers the possibility of very high speed fixed and mobile information services at very low cost without the problems associated with the lower frequency signals.
Countries where Internet access is available to a majority of the population include Germany, India, China, Chile, Iceland, Finland, Sweden, France, Greece, Bulgaria, Italy, Australia, Denmark, the United States, Canada, the United Kingdom, Ireland, Israel, Portugal, The Netherlands, Japan, Singapore, Taiwan, Thailand, South Korea, Philippines, New Zealand and Norway. The use of the Internet around the world has been growing rapidly over the last decade, although the growth rate seems to have slowed somewhat after 2000. The phase of rapid growth is ending in industrialized countries, as usage becomes ubiquitous there, but the spread continues in Africa, Latin America, the Caribbean and the Middle East. One example of a great number of people gaining access to the internet is in Brazil, thanks to lowering taxes on computers and in dial-up providers, Brazilians are growing significantly on the internet in the past 2 years.
However, there are still problems for many. ADSL and other broadband access are rare or nonexistent in most developing countries. Even in developed countries, high prices, mediocre performance and access restrictions often limit its uptake. Within individual countries, wide differences may exist between larger cities (often having multiple providers of broadband access) and some rural areas, where no broadband access may be available at all.
The expansion of the availability of Internet access is a way to bridge the "digital divide".
Internet access methods | |
|---|---|
| Wired: | Dial-up, ISDN, DSL, Cable, Fiber optic, Power-line internet |
| Wireless: | Wi-Fi, WiBro, WiMAX, UMTS-TDD, HSPA, EV-DO, Satellite |
External links
- [https://www.cia.gov/library/publications/the-world-factbook/rankorder/2153rank.html CIA World Fact Book: Number of Internet users by country]
Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government
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hot Dial-up access is a form of Internet access via telephone line. The client uses a modem connected to a computer and a telephone line to dial into an Internet service provider's (ISP) node to establish a modem-to-modem link, which is then routed to the Internet.
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Coaxial cable is an electrical cable consisting of a round conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, usually surrounded by a final insulating layer (jacket).
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An optical fiber (or fibre) is a glass or plastic fiber designed to guide light along its length. Fiber optics is the overlap of applied science and engineering concerned with such optical fibers.
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Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices. This article describes general aspects of electrical wiring as used to provide power in buildings and structures, commonly referred to as building wiring.
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T-carrier, sometimes abbreviated as T-CXR, is the generic designator for any of several digitally multiplexed telecommunications carrier systems originally developed by Bell Labs and used in North America, Japan, and Korea.
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Wi-Fi (pronounced wye-fye, IPA: /ˈwaɪfaɪ/), also unofficially known as Wireless Fidelity
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Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land vehicles.
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mobile phone or cell phone is a long-range, portable electronic device used for mobile communication. In addition to the standard voice function of a telephone, current mobile phones can support many additional services such as SMS for text messaging, email, packet switching
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A public space or a public place is a place where anyone has a right to come without being excluded because of economic or social conditions, although this may not always be the case in practice. One of the earliest examples of public spaces are commons.
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library is a collection of information, sources, resources, and services: it is organized for use and maintained by a public body, an institution, or a private individual. In the more traditional sense, a library is a collection of books.
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internet café or cybercafé is a place where one can use a computer with Internet access, most for a fee, usually per hour or minute; sometimes one can have unmetered access with a pass for a day or month, etc.
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local area network (LAN) is a computer network covering a small geographic area, like a home, office, or group of buildings. The defining characteristics of LANs, in contrast to Wide Area Networks (WANs), include their much higher data transfer rates, smaller geographic range, and
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Wi-Fi (pronounced wye-fye, IPA: /ˈwaɪfaɪ/), also unofficially known as Wireless Fidelity
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A payphone or pay phone is a public telephone, with payment by inserting money (usually coins) or a debit card (a special telephone card or a multi-purpose card) or credit card before a call is made.
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Wi-Fi (pronounced wye-fye, IPA: /ˈwaɪfaɪ/), also unofficially known as Wireless Fidelity
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A hotspot is a venue that offers Wi-Fi access. The public can use a laptop, WiFi phone, or other suitable portable device to access the Internet. Of the estimated 150 million laptops, 14 million PDAs, and other emerging Wi-Fi devices sold per year for the last few years,
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laptop computer, or simply laptop (also notebook computer or notebook), is a small mobile computer, which usually weighs 2-18 pounds (1-6 kilograms), depending on size, materials, and other factors.
A laptop computer is much smaller than a desktop.
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A laptop computer is much smaller than a desktop.
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Personal digital assistants (PDAs) are handheld computers, but have become much more versatile over the years. PDAs are also known as pocket computers or palmtop computers.
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- For other meanings, see Grass roots (disambiguation).
A grassroots movement (often referenced in the context of a political movement) is one driven by the constituents of a community.
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Wireless community networks or wireless community projects are the largely hobbyist-led development of interlinked computer networks using wireless LAN technologies, taking advantage of the recent development of low-cost, standardised 802.
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Ricochet Networks was one of the pioneering wireless Internet service providers in the United States, before the advent of widespread wireless fidelity and before broadband services were available to the general public.
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WiMAX, the Worldwide Interoperability for Microwave Access, is a telecommunications technology aimed at providing wireless data over long distances in a variety of ways, from point-to-point links to full mobile cellular type access.
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Metropolitan area networks, or MANs, are large computer networks usually spanning a city. They typically use wireless infrastructure or Optical fiber connections to link their sites.
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Mesh networking is a way to route data, voice and instructions between nodes. It allows for continuous connections and reconfiguration around broken or blocked paths by “hopping” from node to node until the destination is reached.
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Power line communication (PLC), also called power line carrier, mains communication, power line telecom (PLT), or power line networking (PLN
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Amateur radio, often called ham radio, is both a hobby and a service that uses various types of radio communications equipment to communicate with other radio amateurs for public service, recreation and self-training.
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Anthem
"Das Lied der Deutschen" (third stanza)
also called "Einigkeit und Recht und Freiheit"
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"Das Lied der Deutschen" (third stanza)
also called "Einigkeit und Recht und Freiheit"
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