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LANs Local Area Networks Local Area Networks also called LANs have been a major player in industrialization of computers In the past 20 or so years the worlds industry has be invaded with new computer technology It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software It also lets the user or users share hardware such as Printers and scanners The speed of access between the computers is lighting fast because the data has a short distance to cover In most cases a LAN only occupies one or a group of buildings located next to each other For larger area need there are several other types of networks such as the Internet LANs systems can be defined and connected in many different ways This is the reason for the standardization for every one can have a common ground to start from The LANs described Herein are distinguished from other types of data networks in that they are optimized for a moderate size geographic area such as a single office building warehouse or a campus The IEEE 802 LAN is a shared medium peer-to-peer communications network that broadcasts information for all stations to receive As a consequence it does not inherently provide privacy The LAN enables stations to communicate directly using a common physical medium on a point-to-point basis without any intermediate switching node being required There is always need for an access sublayer in order to arbitrate to access to the shared medium The network is generally owned used and operated by a single organization This is in contrast to Wide Area Networks WANs that interconnect communication facilities in different parts of a country or are used as a public utility These LANs are also different from
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