What Is A Protocol?
A protocol is like a language,only it is spoken between two devices on a network.
Notice here that I use, "devices" in the sentence above. This is because it could be anything that communicates on the network like desktop computers, laptop computers, printers, network ethernet switches and routers, Internet of Things (IoT) devices like light bulbs, security cameras, Ring doorbells, etc.
If it communicates on the network, it is a "device." Another word you will commonly hear is "host." In my book, these are synonymous.
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