The Internet

We all have a working definition of what Internet means to us. However, just like there are different ways to visualize a computer (as seen in last section), the Internet can defined from different perspectives. These definitions are related by a hierarchy called the Open Systems Interconnection (OSI) Model.

Fig: 1.1.3.1. OSI Model of Internet

To learn more about the OSI model please read this: https://en.wikipedia.org/wiki/OSI_model