8 Questions
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?
Client-side vs. server-side development
What is the primary purpose of a database in web development?
To store and manage data for web applications
What is the main characteristic of a dynamic website?
Interactive content
What is the purpose of HTTPS?
To provide a secure protocol for transferring data over the web
What is the primary purpose of SSL/TLS?
Encrypting data in transit
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.
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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