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Let’s BaCk-uP
The computer network means the system of interconnected computers.
The components needed for a network are Network Interface Card, hub or a switch, router,
modem, networking cable and gateway.
The different types of networks are PAN, CAN, LAN, MAN and WAN.
Various types of topologies used in a network are bus, star, tree, ring and mesh.
There are two types of computer network architectures—peer-to-peer network and client-
server network.
In a wireless networking technology, no wires or physical media is used for connecting
computers.
Protocol is a set of rules that governs the communication between the computers over a
network.
Computer Networking 43

