The Internet is a vast network that connects computers around the world via more than 750,000 miles (1,200,000 km) of cable running underground and undersea, according to the University of Colorado Boulder.
It’s the world’s fastest means of communication, making it possible to send data from London, UK to Sydney, Australia in just 250 milliseconds, for example. Creating and maintaining the Internet has been a colossal feat of ingenuity.
What is the internet?
The Internet is a giant computer network, connecting billions of machines together by underground and underwater fibre-optic cables. Continents and islandsEverywhere but Antarctica
Each cable contains glass strands that transmit data in the form of light pulses, according to the magazine to know. These threads are wrapped in layers of insulation and buried under the sea floor by ships carrying specialized plows. This helps protect them from everything from corrosion to Sharks bites;
When you use it, your computer or device sends messages over these cables requesting access to data stored on other devices. When accessing the Internet, most people will use the World Wide Web.
When was the Internet invented?
It was originally created by the United States government during cold War. In 1958, President Eisenhower established the Advanced Research Projects Agency (ARPA).Barley) to give a boost to the country’s military technology, according to Cyber Politics Magazine. Scientists and engineers have developed a linked network Computers called ARPANET.
The original goal of the ARPANET was to connect two computers in different places, enabling them to share data. That dream became a reality in 1969, according to a historian Jeremy Norman. In the years that followed, the team connected dozens of computers together, and by the end of the 1980s the network contained more than 30,000, according to the UK. Science and Media Museum.
How does the internet work
Most computers connect to the Internet without using wires Wi-Fi, via a physical modem. It is wired to a wall socket that connects to an external box. This box is connected via more wires to a network of underground cables. Together, they transform radio waves to electrical signals to the fiber optic pulses, and back again.
At every connection point in the underground network, there are junction boxes called routers. Their job is to find the best way to pass data from your computer to the computer you’re trying to connect to. according to IEEE International Telecommunication ConferenceThey use your IP addresses to determine where the data should go. Latency is the technical word that describes how long it takes for data to move from one place to another, according to border.
Each router is connected only to its own local network. If a message reaches a computer that the router does not recognize, it passes it to a router higher in the local network. They each keep an address book called a routing table. according to Internet Protocol Magazineit displays the paths over the network to all local IP addresses.
The Internet sends data around the world, across land and sea, as shown in submarine cable map. Data passes between networks until it reaches the networks closest to its destination. After that, it passes through the local routers until it reaches the computer with the corresponding IP address.
The Internet is based on two connected computers that speak the same digital language. To achieve this, there is a set of rules called Transmission Control Protocol (TCP) and Internet Protocol (IP), depending on the web infrastructure and site security company. Cloud Flare.
TCP/IP makes the Internet somewhat like a postal system. There is an address book with the extension The identity of each device On the network and a set of standard envelopes to fill out the data. Envelopes must contain the sender’s address, the recipient’s address, and details about the information filled inside. IP explains, how the address system works, while TCP, and how data is packet and sent.
How do the sites work?
Click the numbers on the following interactive image to see what happens when you type www.livescience.com in your browser:
Internet speed and bandwidth
When it comes to internet speed, how much data can you download in one second: bandwidth. according to Tom’s guideFor browsing the web, checking your email, and updating your social media, 25 Mbps is enough. But if you want to watch 4K movies, stream video, or play online multiplayer games, you may need speeds of 100-200Mbps.
Your download speed depends on one major factor: the quality of the terrestrial cables that connect you to the rest of the world. Fiber-optic cables send data much faster than their copper counterparts, according to cable testing company BASECAnd your home internet is limited by the infrastructure available in your area.
Jersey has the highest average bandwidth in the world, according to Cable.co.uk. The small British island off the coast of France has average download speeds of over 274Mbps. Turkmenistan is the lowest, with download speeds barely reaching 0.5 megabits per second.
You can read more about the history of the Internet on the site Internet Society website. To discover how the internet has changed our daily lives, read this article by computing australia.
“Getting to the Bottom of the Internet’s Carbon FootprintUniversity of Colorado Boulder, School of Media, Communication and Information (2021).
“The Evolution of the Internet: From Military Experience to General Purpose TechnologyElectronic Politics Journal (2016).
“The Internet: past, present and futureInstructional Technology (1997).
“Three way handshakeCISSP Study Guide (2nd Edition) (2012).
“Content routers: fetch data on a network pathIEEE International Conference on Communication (2011).
“BGP routing table analysis onlineInternet Protocol Journal (2001).
“Tomorrow’s InternetScience (1999).