The Internet 4.1 Notes

computers used to be big and got smaller and smaller as time went on
computers talk through packets
- a small piece of information that goes from one computer to another
- computers interconnected led to them exchanging packets
packet switching - message is broken up into packets and then sent in any order (reassembled by the recipient)
bandwidth - speed at which the packets travel (bits per second)
- speed depends on the amount of info sent
protocols are a set of rules that both systems agree to

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