How the Internet will Empower Physics Research and How Physics Research will Empower the Internet
How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as...
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Transcript of How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as...
![Page 1: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/1.jpg)
How the Internet Works
CPA
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Internet Addresses• How do you get to the school’s website?• What you as the user sees is a web address or
URL – Uniform Resource Locator
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• HTTP – Hypertext Transfer Protocolo Protocol is just a request to send informationo HTTP is the most commono HTTPS – the s means a secure site
• Sub-domaino Sometimes requiredo Not always www; not all sites part of the webo www stands for world wide web
• Domain nameo The owner of the addresso Name of the web server
![Page 4: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/4.jpg)
Domains
• Top level domain – what kind of website is ito .com – commercial (business for profit)o .org – organization (most often non-profit)o .edu – educational siteo .gov – government siteo .mil – military siteo .net -- network
• File names are just pages on that website; not necessary to reach the website
![Page 5: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/5.jpg)
Parts of a URL
![Page 6: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/6.jpg)
What the computer sees
• Computers don’t understand text• They transfer Internet into numbers.• Computers have an address called an IP Address,
just like phones have phone numberso 23.23.154.295
![Page 7: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/7.jpg)
Sending pictures and video
• Send all your favorite pics to grandma• Break into smaller pieces or packets
![Page 8: How the Internet Works CPA. Internet Addresses How do you get to the school’s website? What you as the user sees is a web address or URL – Uniform Resource.](https://reader036.fdocuments.us/reader036/viewer/2022082817/56649e435503460f94b35b8b/html5/thumbnails/8.jpg)
Transmission• Fiber – messages with one hand• DSL/Cable – message on the back of your hand• Wifi – message on head
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Activity – DNS Translation Table
• Code.org – 23.23.160.123• Thinkersmith.org – 64.14.68.10• CSEDweek.org –
174.129.210.209• CSisFun.com – 198.58.93.24• Khanaacademy.org –
107.20.223.238