How the Internet Works

You down with ТСР ДР? 1. Language Yeah you know me. Everything in the Internet depends on computers being able to communicate with each other - for that, they need a common language or Proctocol Suite. The Internet Protocol Suite (literally a set of protocols) is known as TCP/IP. The protocols used in the internet are overseen by The Internet Seciety, a non-profit group established in 1992. 2. Location, location, location. In order for computers to connect to each other, they need addresses, these addresses can also be thought of as names. Each address is a string like this: ###.###.###.##3# (where # is a number.) Hello, my name is: These addresses are called IP addresses. 123.456,789,012 3. How does one get an IP address? Your ISP (Internet Service Provider) has a number of IP's assigned to them. ISP Your ISP assigns you a dynamic or static IP address, depending on the type of connection you have. Dynamic addresses change every time you log in, static addresses do not. Hello. 123,456.789,012 sa ISP's keep logs of what IP address they give out - and will surrender these logs on court order. наета 4. Okay, so, I've got my address, how does information get to me? You enter Domain Name www.YouTube.com GO DNS gives you lP Youtube Name ik 123.466.79,012 Your ISP Internet Service Provider NAP Server DNS Network Access Protection Domain Name Server You Tube Their ISP Internet Service Provider IP takes request to your ISP, NAP server, their ISP, to the other computer then back to you. Whew! 5. How the internet works physically: ISP 0101000 100 100 1011000 11110001101 010100 1010 0101000 101 010 1000 100 100 1011000 11110001101 010100 1010 0101000 101 Computers convert information you enter into ones and zeros. These ones and zeros are then converted into electrical signals - transmitted as electrical signals across different wires (LAN) or of different sounds (Modem) or radio waves (VWIFI) to a router - which then sends them to an ISP. The ISP converts the zeros and ones to lights which are sent over fiber-optic cables. On the other end, the light is changed back into electricity, and then into ones and zeroes, and then, if necessary, into text, images, sounds, or video. 6. Latest number of users on the internet: 1,802,330,457 1 out of every 4 people in the world have internet access. 7. Number of Internet Service Providers: 8. Web and Server Hosts: 316,000,000 United States 39,909,000 Japan 22,606,000 Germany 17,702,000 Italy 14,306,000 China 8,269,000 United Kingdom 7,000 United States 760 Canada 571 Australia 400 United Kingdom 300 Czech Republic 300 Russia 260 Ukrane 200 Germany 200 Bulgaria 150 South Africa 73 Japan 43 India 3 China 1 North Korea 1 Iraq 1 Yemen 9. Megabits of information sent internationally:" 970,953.5 United States 781,554 United Kingdom 566,056 Germany 334,578 Netherlands 217,521 Canada 200,000 France 188,455 Denmark 157,636 Sweden 136,106 China 132,608 Japan 10. Average Connection Speed: IN MEGABITS PER SECOND: *PER SECOND 11.7 South Korea 8.6 Hong Kong 7.6 Japan 7.2 Romania 6.2 Latvia 6.1 Sweden 5.3 Netherlands 11. The Internet reached 50 million users in 5 years. 5.2 Czech Republic 5.2 Denmark 5.1 Switzerland 3.8 US (22nd Worldwide) 50 M USERS 50 M USERS 50 M USERS INTERNET 5 YEARS 2 MONTHS You Tube TELEVISION Broadcast Yourself" 13 YEARS abc NBC 62 YEARS 12. More video was uploaded to YouTube in the last 2 months than if ABC, NBC and CBS had all been airing new content 24/7 since 1948. RADIO 38 YEARS 13. Around 18 countries still have no internet connection. 14. So just how big is the internet? Currently, some 121,013,927 unique domains have been counted on the web. 384,465,782 domains have been deleted, expired, or transferred to a different owner. On July 25th, 2008, Google announced they had indexed one trillion (1,000,000,000,000) unique URLS on the web, at once. 15. Most domains and pages are stored on servers. Servers are stored in massive data centers: Data centers often consume 40+ megawatts of electricity: enough to power 35,000 homes. And yet, the total world consumption of power for the Data Centers that run much of the internet represents only about 1% of world power consumption. Half of that power is actually storing, retrieving, and manipulating the information. The other half is used cooling the data centers. 35,000 НОMES Sources: http://askbobrankin.com/does ip address_reveal my physical location.htmt http://computec.howstuftworks.com/internet/basics/internetintrastructure.htm http://www.internetworldstats.com/state.htm http://www.nationmaster.com/ http://www.webeiteoptimization.com/bw/1004/ http://blog.jelecos.com/post/2009/05/15/10-ntereating-Facts-About-The Internet.apx http://www.labnol.org/nternet/nteresing-facte-about-internet/986s/ http://www.hongkiat.com/blog/15-facts-on-globalinternet-usagel http://www.intac.net/a-comparison-of-dedicated-servers-by-company 2010-04-13/ http://blogs.techrepublic.com.com/datacenter/?pe112 http://iopscienco.iop.org/1748-9326/3/3/034008/tultet http://www.domaintools.com/intemet-statistica/ http://googleblog.blogspot.com/2008/07/we-knew-web was-big.html makeuseof.com UnlineSchools Design by lason Powers www.OnlineSchools.org NEW CONTENT