COIS 1010H Lecture Notes - Lecture 2: Satellite Modem, Wimax, Coaxial Cable

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Document Summary

Computer network: collection of computers and other hardware devices connected together so users can share hardware, software and data and electronically communicative. Wired: network in which computers and other devices are connected to network via physical cables. Wireless: network in which computers and other devices are connected to network without physical cables, data is typically sent via radio waves. Topology: how devices in network (called nodes) are arranged. Star networks: uses a host deice connected directly to several other devices. Bus networks: consisting of central cable to which all networks devices are attached. Mesh networks: there are multiple connections between devices on the network so that messages can take any one of several paths: architecture: the way networks are designed to communicate, client-server networks. Client: computer or other device on the network that requests and utilizes network resources. Server: computer dedicated to processing client requests. Personal area network (pan): connects an individual"s personal devices that are located close together.

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