The difference between computer network and communication network

Computer networks and communication networks are now inseparable.

Computer Network

Computer network focuses on the five-layer architecture of physical layer, data link layer, network layer, transport layer and application layer, as well as switch and router technology , this is the basic knowledge that must be known. Local area network, wide area network, etc. all refer to computer networks.

Communication Network

Communication network focuses on ensuring the security, reliability and transmission efficiency of information data during transmission. There are mobile communication networks, satellite communication networks, etc. The 2G and 3G we often talk about are communication networks.

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