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This document defines and describes the basic components of a computer network. It explains that a network interface card formats and sends/receives data between connected nodes. A hub connects all computers in a network, while a switch uses addresses to route requests to specific servers. Servers run operating systems and store shared data, with file servers storing files and printer servers managing printers. Clients can send and receive data from other network computers. A modem converts signals between a landline and the Internet. A router directs data from the modem to connected devices like computers, using cables or wireless connections.
