What is TCP?
Why is TCP paired with IP?
TCP/IP is very handy, but how do we know where the data is going in the first place? Well, we read the URL, of course. The URL delivers us right to the exact location of the final HTML file. In order to create a URL, we need to understand the file structure of the internet. This hierarchy is important for proper network organization.
Imagine a workplace with a CEO who oversees Managers, then the Managers oversee Supervisors. Finally, Supervisors oversee the workers who provide the actual content. Even more similar is the structure of our computer hard drives. What part of our computer would be the CEO? What would the Managers be? How about the Supervisors? The Workers? Now, translate that one more little bit to a web server. Now, the domain server is the CEO. It's at the top level. The name servers are next, followed by the folders and finally the working files.
This hierarchy structure is repeated frequently in computer science. You'll see it more as we start to talk about HTML, XML and even in some algorithms.
Additional Links for this Session
* HTML Hierarchy
* Tree Structure
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