networking basics

May 11th, 2015
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This lesson includes the following sections: 1) The uses of a netwok 2) How networks are Structured 3) Network Topologies for LANs Network media and Hardware

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Number convertionlesson 17NetworkingBasicsThis lesson includes the following sections: The Uses of a NetworkHow Networks are StructuredNetwork Topologies for LANsNetwork Media and HardwareNetwork SoftwareThe Uses of a NetworkA network connects computers so they can communicate,exchange information, and share resources.The main benefits of using a network are:Simultaneous AccessShared Peripheral DevicesPersonal CommunicationEasier BackupThe Uses of a Network Simultaneous Access In organizations, many people may need to use thesame data or programs. A network solves thisproblem. Shared data and programs can be stored on acentral network server. A server that stores datafiles may be called a file server. Managers may assign access rights to users. Someusers may only be able to read data, others may beable to make changes to existing files.Read onlyRead/writeThe Uses of a Network Shared Peripheral DevicesBecause peripheral (external) devices like printerscan be expensive, it is cost-effective to connect adevice to a network so users can share it.Through a process called spooling, users can sendmultiple documents (called print jobs) to anetworked printer at the same time. The documentsare temporarily stored on the server and printed inturn.The Uses of a Network Personal Communication One of the most common uses of networks is forelectronic mail (e-mail).

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