Discuss the advantages of using a 3-tier architecture in web application development.11. Trace the evolution of the World Wide Web from its inception to the present day,highlighting key developments and technologies

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1. Advantages of using a 3-tier architecture in web application development:

   • Scalability: The 3-tier architecture allows for the easy scaling of each layer independently according to the needs of the system.
   • Maintainability: Changes can be made to one tier without affecting the others. This makes maintaining and updating the system easier.
   • Reusability: Business logic is separated from data and presentation logic, which promotes reusability.
   • Security: By separating the application into tiers, security can be managed more effectively. For example, the data tier can be secured behind a firewall.
   • Distribution: The tiers can be distributed across different servers or locations, improving performance and reliability.

2. Evolution of the World Wide Web:

   • Inception (1989): The World Wide Web was invented by Tim Berners-Lee at CERN. He wrote the first web browser and server.
   • Early 1990s: The first web browser, Mosaic, was released to the public, making the web accessible to people beyond the scientific community.
   • Mid 1990s: The introduction of JavaScript and CSS made websites more interactive and visually appealing.
   • Late 1990s: The dot-com boom saw a rapid increase in the number of websites and e-commerce businesses.
   • Early 2000s: The advent of Web 2.0 led to more user-generated content, social networking sites, and web applications.
   • Late 2000s to present: The rise of mobile devices led to a focus on responsive web design. The web has also become more integrated with other services and technologies, such as cloud computing and the Internet of Things.