HTTP and HTML | Internet 101 | Computer Science | Khan Academy | Summary and Q&A

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April 23, 2019
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HTTP and HTML | Internet 101 | Computer Science | Khan Academy

TL;DR

Web browsing involves the use of web browsers and HTTP to communicate with servers and retrieve web pages.

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Questions & Answers

Q: How does web browsing work?

Web browsing involves the use of web browsers to access web pages by typing in URLs. This initiates a communication process between the user's computer and a remote server, where the requested web page is retrieved using HTTP.

Q: What is HTTP?

HTTP stands for Hypertext Transfer Protocol, which is the language used by computers to communicate and transfer web document requests. It is a simple protocol that primarily consists of "GET" requests for specific documents.

Q: What is HTML?

HTML stands for HyperText Markup Language and is used to structure and design the appearance of web pages. It includes tags that define the content and layout of a page, such as headings, links, images, and formatting styles.

Q: How do web browsers request separate files like images or videos?

When a web page contains separate files like images or videos, the browser sends separate HTTP requests for each file. This can cause slower page loading if there are numerous separate files to request.

Summary & Key Takeaways

  • Web browsing relies on web browsers, which are used to access web pages by entering URLs.

  • When a web address is entered, the computer communicates with a server using HTTP, a language for requesting documents.

  • Web pages are written in HTML, which is used to structure and design the appearance of the page.

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