how the internet itself works?

what is the internet?

The internet is a bunch of data that we can all reach, by way of being interconnected somehow with wires or wirelessly. and so really, the internet too is a hardware thing.

there's a whole lot of servers out there, that are somehow interconnected by physical cables by internet service providers, by wireless connectivity, and the like, and once you start to have networks of networks of networks do you get the internet.

For example

Google has its own network, Facebook has its own network. and your own home probably has its own network.

but once you start connecting those networks do you get the interconnected network that is the internet as we now know it?

so there's this whole alphabet soup that goes, with the internet, some of whose acronyms and terms you've probably seen before. but let's at least peel back some of those layers and consider what some of the building blocks are.

so here's a picture of the internet before it was known as the internet.

so here's a picture of of the internet before it was known as the internet, back in 1969, when it was something called ARPANET, from the Advanced Research Project Agency and the internet, originally was just to interconnect a few universities here in UTAH and CALIFORNIA, literally servers, or computers, in each of those areas, somehow interconnected with wires, so that people could start to share data.

a year later, it expanded to include MIT and Harvard, and others.

and now fast forward to today, you have a huge number of systems around the world that are on this same network.

and, in fact, if I just pull up a web page here, that's sort of constantly changing, a visualization of the internet as I might now be today, this here, in the abstract, all of these lines and interconnections represent just how interconnected the world is today.

and it just means that there's all the more servers, all the more cabling, all of the more hardware giving us this underlying infrastructure.

but if we focus, really on just these nodes, these individual dots, whether back in 1970, or now in 2022, each of these dots you can think of as, yes it is a sever, but a certain type of server, namely know as a router.

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