Cisco’s Internetworking Operating System (ISO) part 2

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Computer Network Types

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Generally, networks are distinguished based on their geographical span. A network can be as small as distance between your mobile phone and its Bluetooth headphone and as large as the internet itself, covering the whole geographical world, Personal Area Network A Personal Area Network (PAN) is smallest network which is very personal to a user. This may include Bluetooth enabled devices or infra-red enabled devices. PAN has connectivity range up to 10 meters. PAN may include wireless computer keyboard and mouse, Bluetooth enabled headphones, wireless printers and TV remotes. For example, Piconet is Bluetooth-enabled Personal Area Network which may contain up to 8 devices connected together in a master-slave fashion. Local Area Network A computer network spanned inside a building and operated under single administrative system is generally termed as Local Area Network (LAN). Usually,LAN covers an organization’ offices, schools, colleges or universities. Number of systems connected in LAN...
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DCN - Quick Guide

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  Data Communication Overview A system of interconnected computers and computerized peripherals such as printers is called computer network. This interconnection among computers facilitates information sharing among them. Computers may connect to each other by either wired or wireless media. Classification of Computer Networks Computer networks are classified based on various factors.They includes: Geographical span Inter-connectivity Administration Architecture Geographical Span Geographically a network can be seen in one of the following categories: It may be spanned across your table, among Bluetooth enabled devices,. Ranging not more than few meters. It may be spanned across a whole building, including intermediate devices to connect all floors. It may be spanned across a whole city. It may be spanned across multiple cities or provinces. It may be one network covering whole world. Inter-Connectivity Components of a network can be connected to each other differently in some fash...
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