7 Layers of Computer Networking (Explain Like I’m 5 yo)
This post is a part of my full-blown ultimate guide that explains 7 layers of networking through the OSI Model.
I will explain the layers by using a very basic model called the OSI model.
The OSI model
Before throwing some definitions at you, I am going to explain the gist of the model by using a practical example. Imagine that you have an old-school mobile phone with buttons to accept and deny calls as below.
Now also imagine that you give that phone to your grandmother who is 90 years old with the instruction to press the green button when the mobile rings.
Pressing the green button is an instruction that is sufficient for the two mobiles to connect.
Your grandmother needs not to know anything about the mobile maker, the installed hardware, or the operating system as long as she follows the instructions. (Call your grandmother sometimes if she is still around, time passes by quickly!)
