Internet VS Web

The Internet is a global network of networks while the Web, also referred to formally as World Wide Web (www) is a collection of information that is accessed via the Internet.

Web applications use HTTP protocol which is a layer over TCP protocol. Whereas internet applications can use either TCP or UDP protocol.

In 1989, while working at CERN, Tim Berners-Lee wrote a proposal to build a hypertext system over the internet. Initially called the Mesh, it was later renamed the World Wide Web during its implementation in 1990.

Built over the existing TCP and IP protocols, the web consisted of 4 building blocks:

• A textual format to represent hypertext documents, using the HyperText Markup Language (HTML).
• A simple protocol to exchange these documents, the HyperText Transfer Protocol (HTTP).
• A client to display (and edit) these documents, the first web browser called the WorldWideWeb.
• A server to give access to the document, an early version of httpd.

Web Servers VS Web Clients/Browsers

A web server is a software and hardware that serves web content through HTTP, and some other protocols that respond to request from clients made on the World Wide Web.. It is the foundation of the internet and any website out there must be sitting and hosted on a web server.

• The web contents could be images, texts, application data, videos, and many more as per the request of the client.
• The web server hardware gets connected to the internet, allowing the exchange of data with the other devices related to it. It is basically a computer that will store the webserver software as well as the files that are related to the website.
• The web server software controls how the user assesses the files that have been hosted.

The web server is used to:

• Send and receive emails.
• Download the file transfer protocol or FTP request
• Build and publish webpages.

A web server can serve static or dynamic content. To deliver dynamic content, most web servers support server‑side scripting languages to encode business logic into the communication. Commonly supported languages include Active Server Pages (ASP), Javascript, PHP, Python, and Ruby.