Internet access

Main article: Internet

See also: Broadband Internet access

Many technologies and service plans for Internet access allow customers to connect to the Internet. Consumer use first became popular through dial-up connections in the 20th century. By the 21st century, most products were marketed using the term "broadband".

Access as a human right

Further information: [[:Right to Internet access]]

The United Nations has proposed that Internet access should be a human right. This push was made when it called for universal access to basic communication and information services at the UN Administrative Committee on Coordination. In 2003, during the World Summit on the Information Society, another claim for this was made.

In some countries such as Estonia, France, Spain, Finland and Greece, Internet access has already been made a human right.

Proliferation of users

Internet use around the world has been growing rapidly. With market saturation the phase of rapid growth is ending in industrialized countries, but the spread continues in Asia, Africa, Latin America, the Caribbean and the Middle East. For example, the PC Conectado program helped the industry to grow in Brazil.

Availability

Besides offices and residences, there are public places to use the Internet, including libraries and Internet cafes, where computers with Internet connections are available. Some libraries provide stations for connecting users' laptops to local area networks (LANs).

There are wireless Internet access points in public places such as airport halls, in some cases just for brief use while standing. These access points may also provide coin operated computers. Various terms are used, such as "public Internet kiosk", "public access terminal", and "Web payphone". Many hotels also have public terminals, though these are usually fee based.

Coffee shops, shopping malls and other venues also offer wireless access to computer networks, referred to as hotspots, for users who 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.

Internet access as part of the digital divide

Main article: Digital divide

Internet access has grown from 10 million in 1993 to almost 40 million in 1995 and 670 million in 2002. It is estimated that the Internet now has 1.97 billion users. Despite this tremendous growth, Internet access has not been distributed equally throughout the world. (Amir Hatem Ali, 2011)

The gap between people with Internet access and those without it is one of the many aspects of digital divide. Digital divide refers to “the gap between people with effective access to information and communications technology (ICT), and those with very limited or no access to ICT”. ICT consists of “televisions, telephones, videos and computers”. (Watal, Hong, Mandviwalla & Jain, 2011) Internet access is dependent on access to ICT. Whether someone has access to the Internet can depend greatly on financial status, geographical location as well as government policy. “Low-income, rural, and minority populations have received special scrutiny as the technological "have-nots." (Sean Mccollum, 2011). Access to computers is the most dominant factor in determining Internet access. The United States has invested billions of dollars in efforts to breach the digital divide and grant Internet access to more people in low-income areas of the United States. (Sean Mccollum, 2011) In 2009, The National Center for Education Statistics reported 93% of classroom computers had Internet access; and there was about one computer available per every five students.. The Obama administration has continued this commitment of breaching the digital divide and expanding Internet to rural and low-income areas through stimulus money. (Sean Mccollum, 2011)

Government policies play a tremendous role in Internet access. Egypt experienced five days with no Internet access on January 28, 2011 due to a decision made by their president, Hosni Mubarak. The freedom that the people of Egypt had to access information was taken from them. Internet access has changed the way in which many people think and has become an integral part of our economic, political, and social lives. (Amir Hatem Ali, 2011). Providing Internet access to more people in the world will allow them to take advantage of the “political, social, economic, educational, and career opportunities” given through Internet access. (Amir Hatem Ali, 2011)

Types of connections

Although the term broadband once had a technical meaning, it has become "an excellent 21st-century buzzword."

Common methods of consumer Internet access in 2011 include:

• dial-up (including ISDN)
• Asymmetric digital subscriber line (ADSL)
• Internet over cable television lines
• LAN (PPPoE) - usually in areas of high population density
• Wi-Fi hotspots
• Wireless Internet service provider - sometimes simply called 'microwave'
• Mobile broadband over terrestrial mobile phone networks using CSD, GPRS, EDGE, EVDO, HSPA, etc. either through mobile phones or PCs
• Satellite Internet

See also: Last mile § Existing last mile delivery systems, and Local loop

As of 2011, the following methods see a smaller usage share:

• data-only cellular networks like WiMAX and LTE
• Leased line
• broadband over power line
• IP over DVB
• fiber to the home
• Wireless mesh network - mostly military and One laptop per child use
• Packet radio
• Free-space optical communication
• Wizzy Digital Courier

At the turn of the century most residential access was by dial-up while access from businesses was usually by higher speed connections. In subsequent years dial-up declined.

Access technologies generally use a modem, which converts digital data to analog for transmission over a particular analog network (ex. the telephone or cable networks).

Dial-up

Main article: Dial-up

This technology dials into the network through an existing phone line, creating a semi-permanent link to the Internet. Operating on a single channel, it monopoliSes the phone line and is the slowest method of accessing the Internet. Dial-up is often the only form of Internet access available in rural areas as it requires no infrastructure, other than the already existing telephone network, to connect to the Internet. Typically, dial-up connections do not exceed a speed of 56 kbit/s, as they are primarily made via a 56k modem.

Broadband

Main article: Broadband internet

This term includes a broad range of technologies, all of which provide high data rate access to the Internet. Broadband provides a continuous connection; there is no dial-up/in process required and it does not “hog” phone lines. In 2008, the United States Federal Communications Commission (FCC) defined broadband as any connection above 768 kbit/s.

DSL (ADSL/SDSL)

Main article: Digital subscriber line

DSL (Digital Subscriber Line) provides a connection to the Internet through the telephone network. Unlike dial-up, DSL can operate using a single phone line without preventing normal use of the telephone line for phone calls. DSL uses the high frequencies, while the low frequencies of the line are left free for regular telephone communication.

WiFi

Main article: Wi-Fi

Wi-Fi is the standard method to connect a high-speed local area network via wireless transmitter/receiver. WiFi is convenient for mobile Internet users and can bring service to areas where wiring would be costly. WiFi service range is short, and penetration through building walls is limited.

WiMax

Main article: Wimax

WiMax (Worldwide Interoperability for Microwave Access) works similarly to WiFi in that it transmits information via airwaves, but it handles network traffic more efficiently. This technology penetrates building walls much more effectively and can be used across larger distances than WiFi.

Cable modem

Main article: Cable modem

Cable Modem transmits data via airwaves on the cable television infrastructure. Although cables have low interference, comparably high speeds, and allow television use, the cost of bringing service into an area (trenching cable) can be very high.

Satellite

Main article: Satellite internet

Data is transmitted via satellite dishes, which send and receive data to and from satellites in orbit in space. There are many factors that affect the reception of the Internet using this technology, including wind, rain, and trees. However, it is ideal for those living in rural areas where other internet access technologies have not been extended.

Cellphones

Main article: Cellular broadband

Cellular broadband is wireless high-speed internet access through a portable telephone or cellular device. Information is transmitted through cellular towers.

Fiber-optic

Main article: Fiber-optic communication

Fiber optic wires convert electrical signals carrying data into light, and send this light through tiny transparent glass fibers. This method is extremely fast and has little interference. It is more expensive than other methods to deploy. Its speed is dependent on how close the fibers are to one's computer, the amount of bandwidth available, and how the service is configured.

Power-line internet

Main article: Power-line internet

Power-line Internet technology uses power lines to send and receive radio signals. Because of the extensive power line infrastructure already in place, this technology would allow people in rural and low population areas to access the Internet with little cost in terms of equipment, cables or wires.

T-lines

Main article: T-carrier

In T-line internet access data is carried over fiber optic lines or copper lines. They are fast but highly regulated and generally intended for business use.

See also

• Global Internet usage
• List of countries by number of Internet users
• List of countries by number of broadband Internet users
• National broadband plans from around the world
• Global digital divide
• History of the Internet
• English on the Internet
• Unicode

References

• Amir Hatem Ali, A. (2011). The power of social media in developing nations. 21
• Wattal, S.; Yili Hong; Mandviwalla, M.; Jain, A., "Technology Diffusion in the Society: Analyzing Digital Divide in the Context of Social Class," System Sciences (HICSS), 2011 44th Hawaii International Conference on, vol., no., pp.1-10, 4-7 Jan. 2011
• McCollum, S. Getting Past the 'Digital Divide'. The Education Digest v. 77 no. 2 (October 2011) p. 52-5

External links

• CIA World Fact Book: Number of Internet users by country