According to Wikipedia, "the internet is a computer network that links billions of computing devices all over the globe." Give a "nuts and bolts" explanation of three components and the role they each play in achieving communication over the internet.

According to Wikipedia, "the internet is a computer network that links billions of computing devices all over the globe." Give a "nuts and bolts" explanation of three components and the role they each play in achieving communication over the internet.

According to Wikipedia, "the internet is a computer network that links billions of computing devices all over the globe." [Citation needed] Using a "nuts and bolts" method to explain what they are, please provide a concise explanation of the following three components, as well as the role each of them plays in enabling communication through the internet:

For instance, wireless networks are crucial in today's developing countries. Wireless networking has largely supplanted wired connections and LANs in a variety of contexts. Is there anything to be gained or lost by doing this?