Local area network lan local area network is the network which is made within the office, room or building. Proper usage and audio pronunciation plus ipa phonetic transcription of the word local area network. Sharing of information over geographically wide areas. Due to its low cost, flexibility, and space saving characteristics, small area networks provide device control. A local area network is a group of personal computers and associated equipment that are. A lan may be configured as 1 a bus, a main channel to which nodes or secondary channels are connected in a branching structure, 2 a ring, in which each computer is connected to two neighbouring computers to form a closed circuit, or 3 a star, in which each. B network bandwidth, lcable length, pfb, cthe speed of signal propagation, and optimal case of e contention slots per frame. Local area network lan, any communication network for connecting computers within a building or small group of buildings. However, one lan can be connected to other lans over any distance via telephone lines and radio waves. Local area network pa dansk engelskdansk ordbog glosbe. A local area network lan is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area. One computer is for secretary and it has printer attached to her computer. A local area network can save in hardware costs when expensive peripherals are shared. The local area network lan is a network which is designed to operate over a small physical area such as an office, factory or a group of buildings up to a few kilometers in size.
Local area network definition is a network of personal computers in a small area such as an office for sharing resources such as a printer or exchanging data called also lan. Local area network definition, a system for linking private telecommunications equipment, as in a building or cluster of buildings. A wan connects different smaller networks, including local area networks lans and metro area networks mans. A local area network is a network that connects devices at a single location. A man often provides efficient connections to a wide area network wan. A number of lans local area networks when interconnected forms a metropolitan area network. A local area network lan is a network that is confined to a relatively small area. The computer scientists who designed the internet in the 1970s wanted it to interconnect networks, so they called it the internet. A local area network lan is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus. But those local area networks are always made up of heterogeneous network structures. All these networks are interconnected through a backbone technology having a very high capacity.
The worlds most comprehensive professionally edited abbreviations and acronyms database all trademarksservice marks referenced on this site are properties of their respective owners. An introduction to local area networks research mit. So goes the prevailing wisdom in many educational technology circles throughout the country. Local area networks article about local area networks by. Local area network definition of local area network at. Now that printer can be shared to other computers by networking. A local area network may serve as few as two or three users in a homeoffice or several hundred users in. This ensures that computers and users in one location can communicate with computers and users in other locations.
Advantages of lans before local area networks came into use, two other methods were employed to implement communication between plcs. Atm bisdn fddi token ring physical medium baseband. A wide area network wan is a network that exists over a largescale geographical area. Networks will dominate the educational technology scene into the 1990s. A local area network generally provides highbandwidth communication over inexpensive transmission media. Stands for local area network and is pronounced lan. Municipal area network how is municipal area network abbreviated. How a local area network works today local area network definition. A lan is composed of interconnected workstations and personal computers which are each capable of accessing and sharing data and devices, such as printers. Local area network designprint version wikibooks, open. Switches allow different nodes a network connection point, typically a computer of a network to communicate directly with one another in a smooth and efficient manner. Dlan stands for defense local area network suggest new definition this definition appears very rarely and is found in the following acronym finder categories. List the different types of hardware found in a lan or a wan.
Switches that provide a separate connection for each node in a companys. Nan stands for national area network suggest new definition this definition appears somewhat frequently and is found in the following acronym finder categories. Local area network software free download local area. This backbone technology might be based up on fiber optical links offering up link services to internet and wide area networks wans. Metropolitan area network metropolitan area networkmanis a computer networks usually spanning a campus or a city, which typically connect a few local area networks using high speed backbone technologies. A local area network lan is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings. Busses are often even more local than our definition of a local area network. And, judging from the numbers, that wisdom just may be right. Wan terminology as your local area network matures, you will probably notice a decrease in its responsiveness. The days of the standalone computer are drawing to a close. A man like a wan is not generally owned by a single organisation. Information about local area network in the dictionary, synonyms and antonyms.
Jan 21, 2020 connect the switch to a lan port on the router. A wan wide area network is a communications network that spans a large geographic area such as across cities, states, or countries. Due to its low cost, flexibility, and space saving characteristics, small area networks provide device control, media security, and. By contrast, a wide area network wan not only covers a larger geographic distance, but also generally involves leased telecommunication circuits ethernet and wifi are the two most common technologies in use for.
Networks, in general, and lans, mans, and wans are defined. The first method used a pair of wires to connect the output card of one plc to the input card of a second plc. There are three important features which discriminate. Nan is defined as national area network somewhat frequently. Clark et al, 1978 defined wlan as a data communication network, typically a. Local area network definition and meaning collins english. Information and translations of local area network in the most comprehensive dictionary definitions resource on the web. By contrast, a wide area network wan not only covers a larger geographic distance, but also generally involves leased telecommunication circuits. A network used to integrate devices in the home and connect to the internet. This is done to communicate, exchange data and to integrate things and experiences. List out the characteristics of metropolitan area network.
Ever wondered what vpn, lan, pan and other networks are. The textbook definition of a wan is a computer network spanning regions, countries, or even the world. A computer network is defined as the interconnection of two or more computers. You can use any open port on the switch to make the connection.
A network that connects computers and devices within a building or small group of buildings is known as a local area network lan. A lan is a data communication system allowing a number of independent devices to communicate directly with each other, within a moderately sized geographical area over a physical communication channel of moderate data rate. They can be private to connect parts of a business or they can be more public to connect smaller networks together. In this chapter, we concentrate on those wan issues that you must understand to pass the microsoft networking essentials exam. Local area network definition of local area network by. Security for broadband metropolitan and wide area network at the. Local and metropolitan area networks llocal area networks lan networks that optimized for a moderatesize geographic area, such as a single office building, a warehouse, or a campus. National area network how is national area network abbreviated.
Localwide area network standards logical link control llc ieee 802. Metropolitan area network article about metropolitan area. As the authors state in the first paragraph of chapter 3, lan selection is a crucial step in the development of a local area network. Lans may be found in homes, offices, educational institution, or other areas. Metropolitan area network definition of metropolitan area. A wide area network wan is a telecommunications network that extends over a large. Obviously, from the definition the wlan is the same as lan but without wires. If youre using a network switch to connect more computers, connect it to one of the lan ports on the router.
Local area networks allow the sharing of resources and the exchange of data among computers. A local area network lan is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. Like the familiar local area network lan used to connect computers within an office or building, a small area network san is used to connect integrated circuit ic components on a printed circuit board, or within a box or system. List out the characteristics of metropolitan area network and. Local area networks lans are computer networks ranging in size from a few computers in a single office to hundreds or even thousands of devices spread across several buildings. Clark et al, 1978 defined wlan as a data communication network, typically a packet communication network, limited in geographic scope. Localarea networks lans send and receive data at rates much faster than can be transmitted over a telephone line. A lan can have from two to several hundred such nodes, each separated by distances of several feet to as much as a. Local area network lan security total computer solutions. They function to link computers together and provide shared access to printers, file servers, and other services. The ieee 802 working group defined the local area network lan as a communication system through a shared medium, which allows independent devices to communicate together within a limited area, using an highspeed and reliable communication channel keywords. Devices on the same logical network must have addresses with the same network part.
The man, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users. A lan may link the computers within a home, office, or campus, for example, allowing the individual users to share resources. Local area network designintroduction to local area. When connected, the router will provide ip addresses for every computer that is connected to either device. A local area network is a computer network that covers a small physical area. For example, most home and business networks are on a lan. Compare characteristics of different network cabling types. A local area network is a term that denoted a series of comptuers or devices that are interconnected together in the same general area such as an office or a building. Local area network definition of local area network by the. For example, if you have a laptop and a desktop computer at your house, you probably have a local area network even if you don. If a network is at more than one location or across a wide area its considered a wan.
Consists of a hollow outer cylindrical conductor which surrounds a single inner wire conductor. Metropolitan area network article about metropolitan. Definition of local area network in the dictionary. For example, this can allow everyone in a home to access shared files. A local area network may serve as few as two or three users in a homeoffice or several hundred users in a corporations central office. Before the internet became popular, they were just called. A local area network lan is a computer network that spans a relatively small area.
A lan may be configured as 1 a bus, a main channel to which nodes or secondary channels are connected in a branching structure, 2 a ring, in which each computer is. This definition explains a local area network lan which is a group of computers within a distinct geographic area that share the same communications or. Lans very widely used in a variety of computers to share resources e. A system of networked computers which encompasses an average city. Within the electric utilities industry a example of a small physical area is a substation. If you think about the word internet, you may realize that its trying to tell you something. They break the decision process into three separate but highly related activities that must occur. Each of the networks the internet interconnects is a local area network. Purpose of a lan local area network essay 2909 words 12 pages. Most lans are confined to a single building or group of buildings.
Municipal area network how is municipal area network. Short for local area network, a lan has networking equipment or computers in close proximity to each other, capable of communicating, sharing resources and information. Wireless local area network wlan definition gabler. Using routers, lans can connect to wide area networks wans. A system of lans connected in this way is called a widearea network. Introduction to local area networks for microcomputers.
Purpose of a lan hosts, devices dual functions, examples of lan use, types of resources shared, information that can be accessed using a lan, purpose of lan components and advantages and disadvantages of cable, fibre, wireless in terms of bandwidth, location, security, reliability. The need for more costeffective and capable communications has inspired the emergence of rapidly developing markets and technologies for local area networks. A lan is a network of connected devices that exist within a specific location. Local area networks lans encyclopedia business terms. A computer bus is often highly parallel, with separate control, data, and address.
Many companies have managed their networks poorly in the past, and at. The benefit to the networking world at large is that. The first method used a pair of wires to connect the output card of. Local area networks lans essay 1693 words bartleby. Ethernet is a contentionbased network, which basically means that devices must compete for network access because only one device can access the network at once within a collision domain. A hub is a classic example of one single collision domain. The benefit to you is that you dont need permission from any internet authority to addremovemodify the devices on the lan, while still gaining legitimate access to the internet via a router. This local area use of long due to the fact that longhaul packet communication technology has haul network technology, indicated by the shaded area of fig. The easiest way to understand what a wan is to think of the internet as a whole, which is the. A collision domain is a network area where frames originate and collide.
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