The Big Difference
The "Internet" and the "Web" are often used to mean the same thing, but actually they are different.
The Internet is a global network of connected computers, it is an infrastructure. The Web, or "World Wide Web", or "www", is an application that works on the internet.
Sir Tim Berners-Lee created the World Wide Web in 1989. The internet already existed at that time. The web enabled documents, or web-pages to be shared between people using the internet.
This distinction opens the door to other basic principles, for example, HTTP, Browsers, and Cookies.
Web for All
The social value of the Web is that it enables human communication, commerce, and opportunities to share knowledge. One of W3C's primary goals is to make these benefits available to all people, whatever their hardware, software, network infrastructure, native language, culture, geographical location, or physical or mental ability.
W3C - World Wide Web Consortium