A report on Internet

The Internet Messenger by Buky Schwartz, located in Holon, Israel
T3 NSFNET Backbone, c. 1992.
ICANN headquarters in the Playa Vista neighborhood of Los Angeles, California, United States.
2007 map showing submarine fiberoptic telecommunication cables around the world.
Packet routing across the Internet involves several tiers of Internet service providers.
Number of mobile cellular subscriptions 2012–2016
As user data is processed through the protocol stack, each abstraction layer adds encapsulation information at the sending host. Data is transmitted over the wire at the link level between hosts and routers. Encapsulation is removed by the receiving host. Intermediate relays update link encapsulation at each hop, and inspect the IP layer for routing purposes.
Conceptual data flow in a simple network topology of two hosts (A and B) connected by a link between their respective routers. The application on each host executes read and write operations as if the processes were directly connected to each other by some kind of data pipe. After the establishment of this pipe, most details of the communication are hidden from each process, as the underlying principles of communication are implemented in the lower protocol layers. In analogy, at the transport layer the communication appears as host-to-host, without knowledge of the application data structures and the connecting routers, while at the internetworking layer, individual network boundaries are traversed at each router.
A DNS resolver consults three name servers to resolve the domain name user-visible "www.wikipedia.org" to determine the IPV4 Address 207.142.131.234
Creating a subnet by dividing the host identifier
This NeXT Computer was used by Tim Berners-Lee at CERN and became the world's first Web server.
Share of population using the Internet. See or edit source data.
Internet users per 100 population members and GDP per capita for selected countries.
Internet users per 100 inhabitants Source: International Telecommunication Union.
Internet users in 2015 as a percentage of a country's population Source: International Telecommunication Union.
'''Fixed broadband Internet subscriptions in 2012
as a percentage of a country's population''' Source: International Telecommunication Union.
'''Mobile broadband Internet subscriptions in 2012
as a percentage of a country's population''' Source: International Telecommunication Union.
Banner in Bangkok during the 2014 Thai coup d'état, informing the Thai public that 'like' or 'share' activities on social media could result in imprisonment (observed 30 June 2014).
Internet users by language<ref name=NIUBL-IWS>{{cite web|url=http://www.internetworldstats.com/stats7.htm|title=Number of Internet Users by Language|archive-url=https://web.archive.org/web/20120426122721/http://www.internetworldstats.com/stats7.htm|archive-date=26 April 2012|website=Internet World Stats, Miniwatts Marketing Group|date=31 May 2011|access-date=22 April 2012}}</ref>
Website content languages<ref name=UofCLBWApril2013>{{cite web|title=Usage of content languages for websites|url=http://w3techs.com/technologies/overview/content_language/all|work=W3Techs.com|access-date=26 April 2013|archive-url=https://www.webcitation.org/66ZQzUXh6?url=http://w3techs.com/technologies/overview/content_language/all|archive-date=31 March 2012|url-status=live}}</ref>

Global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.

- Internet
The Internet Messenger by Buky Schwartz, located in Holon, Israel

176 related topics with Alpha

Overall

Diagram of the Layer 1 (physical) and Layer 2 (Data Link) topology of an Internet Exchange Point (IXP).

Peering

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Diagram of the Layer 1 (physical) and Layer 2 (Data Link) topology of an Internet Exchange Point (IXP).
Diagram of the Layer 3 (network) topology of an Internet Exchange Point (IXP).

In computer networking, peering is a voluntary interconnection of administratively separate Internet networks for the purpose of exchanging traffic between the "down-stream" users of each network.

Typical low-cost webcam used with many personal computers (2007)

Webcam

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Typical low-cost webcam used with many personal computers (2007)
Higher cost webcam (2017) with 1080p resolution and built-in stereo microphones
Components of any webcam are: Image sensor, lens and supporting circuitry.
The Trojan Room coffee pot, as displayed in XCoffee
SGI IndyCam
Model in front of webcam.

A webcam is a video camera that feeds or streams an image or video in real time to or through a computer network, such as the Internet.

The transport layer in the Internet protocol stack.

Transport layer

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Conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model.

Conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model.

The transport layer in the Internet protocol stack.

The details of implementation and semantics of the transport layer of the Internet protocol suite, which is the foundation of the Internet, and the OSI model of general networking are different.

BGP state machine

Border Gateway Protocol

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BGP state machine
A typical configuration of BGP RR deployment, as proposed by Section 6, RFC 4456.
BGP table growth on the Internet
Number of AS on the Internet vs number of registered AS

Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet.

Internet traffic

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Internet traffic is the flow of data within the entire Internet, or in certain network links of its constituent networks.

UCLA Henry Samueli School of Engineering and Applied Science

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School of engineering at the University of California, Los Angeles (UCLA).

School of engineering at the University of California, Los Angeles (UCLA).

Engineering IV building
Entrance to Boelter Hall
K. Megan McArthur, ’93

The school is credited as the birthplace of the Internet, where the first message was sent to a computer at Stanford University on October 29, 1969 by Professor Leonard Kleinrock and his research team at UCLA.

Screenshot of Websense blocking Facebook in an organization where it has been configured to block a category named "Personals and Dating"

Internet censorship

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Screenshot of Websense blocking Facebook in an organization where it has been configured to block a category named "Personals and Dating"
18px

Internet censorship is the control or suppression of what can be accessed, published, or viewed on the Internet enacted by regulators, or on their own initiative.

Routing protocol classification computer networks.

Routing protocol

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A routing protocol specifies how routers communicate with each other to distribute information that enables them to select routes between nodes on a computer network.

A routing protocol specifies how routers communicate with each other to distribute information that enables them to select routes between nodes on a computer network.

Routing protocol classification computer networks.

Exterior gateway protocols are routing protocols used on the Internet for exchanging routing information between Autonomous Systems, such as Border Gateway Protocol (BGP), a path-vector routing protocol. Exterior gateway protocols should not be confused with Exterior Gateway Protocol (EGP), an obsolete routing protocol.

WildBlue satellite Internet dish on the side of a house

Satellite Internet access

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Internet access provided through communication satellites.

Internet access provided through communication satellites.

WildBlue satellite Internet dish on the side of a house
How satellite internet works.
A foldable Bigpond satellite Internet dish
Fresnel zone. D is the distance between the transmitter and the receiver, r is the radius of the Fresnel zone.
The back panel of a satellite modem, with coaxial connections for both incoming and outgoing signals, and an Ethernet port for connection
The two-way "iLNB" used on the SES Broadband.
Portable Satellite Internet Modem and Antenna deployed with the Red Cross in South Sudan.

Following the invention of the Internet and the World Wide Web, geostationary satellites attracted interest as a potential means of providing Internet access.

The official US Army mobile app presents the service's technology news, updates and media in a single place

Mobile app

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Computer program or software application designed to run on a mobile device such as a phone, tablet, or watch.

Computer program or software application designed to run on a mobile device such as a phone, tablet, or watch.

The official US Army mobile app presents the service's technology news, updates and media in a single place
An emulation app for the programmable pocket calculator HP-41CX from 1983. Several such apps exist for full-functionally emulating old home computers, game consoles or even mainframe computers from up to several decades ago.
Developers at work

Many apps require Internet access.