1.3.3 Simplistic View of the Internet

In the most simplistic form, the Internet is a whole bunch of interconnections that allow a network interface communicate with another network interface, as long as one knows the IP address of the other. This simplistic view is sufficient for most people who want to use the Internet for purposes of communication.

In other words, as long as you know where point B is, you can travel from point A to point B using the Internet. The infrastructure of the Internet consists hubs, switches, routers and firewalls, with cables of all kind interconnecting these devices. For most of us, the infrastructure is not very important. Nonetheless, it is still a good idea to understand a part of it.