Programming the World Wide Web

I have been using the web for quite some time so I consider myself fairly knowledgeable as a user on how it works.  But I never knew all of the schematics that go along with the internet.  In my head I just imagined that whenever I used the internet the information that I entered into the browser connected to some imaginary  space where all of the internet was floating.  I found it interesting that the internet is actually many computers which are connected to a communications network. Upon reading about domains I was intrigued to find out that the IP address can be typed into the web browser and it will take the user to the website.

I found section 1.2.2 titled "Web or Internet?" interesting.  To me the web and the internet are the same thing.  I know that many people including myself use the term interchangeably to describe one thing; however, the author defines the internet as a collection of computer and devices that connect to equipment and the web as a collection of software and protocols which run documents to users. Although this makes sense, I feel that it is not necessary to have separate definitions for web and internet.  They both describe what is called online.