Computers A, B, C, and Computers 1,2,3.Īnd Computers 1,2, and 3 know each other.īut Computer C, and Computer 3 are special in that they also know each other. What this really means is that the entire internet can play a large game of 6 degrees of separation. What we mean by logical is that IP Addresses are routeable. To get around this physical limitation, they separated computer communication to also contain a logical component, the IP Address. Now imagine, you also needed a physical wire to Seattle to connect to msn.com And now imagine that everyone in the world would need a physical wire just to see a website.Īs you can see, it would physically become very complicated very quickly and the internet would have stayed very small. Imagine if in order to go to you had to have a physical wire connecting your computer out to Palo Alto California, just to see their website. If every computer in order to communicate with each other needed to be physically connected to each other, all networks either would become complicated very quickly or they would stay small. We know from previous posts that each computer has both an IP Address and a MAC Address assigned to it.
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