World Wide Web Basics
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Questions and Answers

Who is credited with inventing the World Wide Web?

Tim Berners-Lee

What is the primary purpose of the HTTP protocol?

Transferring data over the web

What is the purpose of a URL?

To locate a specific web page

What is the main difference between front-end and back-end development?

<p>Client-side vs. server-side development</p> Signup and view all the answers

What is the primary purpose of a database in web development?

<p>To store and manage data for web applications</p> Signup and view all the answers

What is the main characteristic of a dynamic website?

<p>Interactive content</p> Signup and view all the answers

What is the purpose of HTTPS?

<p>To provide a secure protocol for transferring data over the web</p> Signup and view all the answers

What is the primary purpose of SSL/TLS?

<p>Encrypting data in transit</p> Signup and view all the answers

Study Notes

Definition and History

  • The World Wide Web (WWW or Web) is a system of interlinked hypertext documents that can be accessed via the Internet.
  • Invented by Tim Berners-Lee in 1989 while working at CERN.
  • The first web page was launched on August 6, 1991.

Key Components

  • HTTP (Hypertext Transfer Protocol): a protocol used for transferring data over the web.
  • HTML (Hypertext Markup Language): a markup language used to create web pages.
  • URL (Uniform Resource Locator): a web address used to locate a specific web page.

Web Technologies

  • Front-end development: client-side development using HTML, CSS, and JavaScript.
  • Back-end development: server-side development using languages like PHP, Ruby, and Python.
  • Databases: used to store and manage data for web applications.

Web Architecture

  • Client-server architecture: a client (web browser) requests resources from a server.
  • Three-tier architecture: presentation, application, and data storage tiers.

Web Development

  • Static websites: websites with fixed content, built using HTML, CSS, and JavaScript.
  • Dynamic websites: websites with interactive content, built using server-side languages and databases.
  • Responsive web design: designing websites to adapt to different screen sizes and devices.

Web Security

  • HTTPS (Hypertext Transfer Protocol Secure): a secure protocol for transferring data over the web.
  • SSL/TLS (Secure Sockets Layer/Transport Layer Security): encrypting data in transit.
  • SQL injection and cross-site scripting (XSS): common web vulnerabilities.

Definition and History

  • The World Wide Web (WWW or Web) is a system of interlinked hypertext documents accessible via the Internet.
  • Invented by Tim Berners-Lee in 1989 while working at CERN.
  • The first web page was launched on August 6, 1991.

Key Components

  • HTTP (Hypertext Transfer Protocol) is a protocol used for transferring data over the web.
  • HTML (Hypertext Markup Language) is a markup language used to create web pages.
  • URL (Uniform Resource Locator) is a web address used to locate a specific web page.

Web Technologies

  • Front-end development involves client-side development using HTML, CSS, and JavaScript.
  • Back-end development involves server-side development using languages like PHP, Ruby, and Python.
  • Databases are used to store and manage data for web applications.

Web Architecture

  • Client-server architecture is a model where a client (web browser) requests resources from a server.
  • Three-tier architecture consists of presentation, application, and data storage tiers.

Web Development

  • Static websites have fixed content and are built using HTML, CSS, and JavaScript.
  • Dynamic websites have interactive content and are built using server-side languages and databases.
  • Responsive web design involves designing websites to adapt to different screen sizes and devices.

Web Security

  • HTTPS (Hypertext Transfer Protocol Secure) is a secure protocol for transferring data over the web.
  • SSL/TLS (Secure Sockets Layer/Transport Layer Security) is used to encrypt data in transit.
  • SQL injection and cross-site scripting (XSS) are common web vulnerabilities.

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Description

Learn about the definition, history, and key components of the World Wide Web, including HTTP, HTML, and URL. Discover how the web was invented and launched.

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