A device that connects to an internal bus in a pc, which provides an interface between the computer or device and the lan. A local area network lan is a number of computers and computer peripherals disc storage devices, printers connected by high speed data lines within a. Local area network definition, a system for linking private telecommunications equipment, as in a building or cluster of buildings. A lan is useful for sharing resources like files, printers, games or other applications. Find out inside pcmags comprehensive tech and computerrelated encyclopedia. Local area network definition of local area network by. Computer accessories include printers, scanners, game consoles etc. That is, one network can be connected to another network and become a more powerful tool because of the greater resources. Alternatives on the lan framework include cans, mans, and wans. Lans and their layer 2 interconnects are by definition of local interest, i. Local area network is localize computer network use for communication between host systems, in lan each device shared the same ip address scheme. 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. For wireless networks, network adapters typically connect to the pc card bus or to the usb bus. List the advantages and disadvantages of local area networks.
A lan, or localarea network, is a computer network that spans a relatively small area, usually confined to a single room, building or group of buildings. A lan can be small or large, ranging from a home network with one user to an enterprise network with thousands of users and devices in an office or school. A local area network is a group of personal computers and associated equipment that are. Lan definition a network is a group of computers and other devices connected together so they can pass information back and forth. Advantages and disadvantages of local area network lan. Local area network definition of local area network at.
For most lans, the maximum distance between two nodes in the. Meaning, pronunciation, translations and examples log in dictionary. A local area network lan is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. By definition, the connections must be high speed and relatively inexpensive e. A network that spans a small geographic area, such as a single building or buildings close to each other. An introduction to local area networks research mit. Client serve network are defined by the presence of servers on. Clear explanations of natural written and spoken english. A local area network is a highspeed, mediumdistance communication system. The easiest way to understand what a wan is to think of the internet as a whole, which is the. An interconnected collection of autonomous computers interconnected.
Lan, man, and wan are the three types of the network designed to operate over the area they cover. Difference between lan, man and wan with comparison chart. They can be private to connect parts of a business or they can be more public to connect smaller networks together. Ip addresses are 32 bit long, hierarchical addressing scheme. 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. List the primary activities and application areas of a local area network.
Local area network lan, any communication network for connecting computers within a building or small group of buildings. Lecture 4 classifications of computer networks lan local area network. Also, most local networks support at least 100 stations, or nodes. A local area network lan is a collection of devices connected together in one physical location, such as a building, office, or home. For most lans, the maximum distance between two nodes in the network is at least one mile, and the transmission speed ranges from 1 to 20 megabaud. A local area network consists of a computer network at a single site for. What is the difference between a lan, a man, and a wan. The term is loosely synonymous with internet, which is considered a global area network. Stands for local area network and is pronounced lan. Local area network meaning of local area network by lexico. 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. Ip is a standard that defines the manner in which the network layers of two hosts interact. Local area networks lans were developed following the advent of the. 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.
Local area network definition in the cambridge english. The network allows computers to connect and communicate with different computers via any medium. Two basic network types are local area networks lans and wide area networks wans. It normally connects the computers and other devices within one office, building or a group of nearby buildings.
A global area network gan refers to a network composed of different interconnected networks that cover an unlimited geographical area. By contrast, a wide area network wan not only covers a larger geographic distance, but also generally involves leased telecommunication circuits. Wide area networks wans and local area networks lans. All three of these network options are illustrated below. Today, the relationship has been turned around, so that the distance range of local area networks is governed. Computer network, two or more computers that are connected with one another for the purpose of communicating data electronically. Before going into the main topic let me first discuss what is lan. Fig 1 gives an example of a network in a school comprising of a local area network or lan connecting computers with each other, the internet, and various servers. Local area network lan wide area network wan you may also see references to a metropolitan area networks man, a wireless lan wlan, or a wireless wan wwan. Types of lan the personal computers and workstations in the offices are interconnected via lan to share resources. Asynchronous transfer mode atm, integrated services digital network isdn lanscover buildings or a set of closely related buildings.
A network is a group of computers and other devices connected so they can pass information back and forth. What distinguishes a local network from a wide network are the usage models they support along with some rough limits on physical distance and area. A lan is composed of interconnected workstations and personal computers which are each capable of accessing and sharing data and devices, such as printers. A computer network consists of a collection of computers, printers and other equipment that is connected together so that they can communicate with each other. Introducing basic network concepts 3 basetech networking concepts team 2230894 blind folio 3. Local area networks lan and wide area networks wan. A network consists of 2 or a lot of computers that are coupled so as to share resources such as cds and printers, exchange files, or enable electronic communications. 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. A clientserver network is one n which all available network resources such as files, directories, applications and shared devices, are centrally managed and hosted and then are accessed by client.
The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. Cell networks support mobile phones that connect over long distances, a type of wireless wide area network wwan. 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 is a network for connecting computers and other computer accessories with each other. Local area network lan communications security is addressed in this essay. Local area network designintroduction to local area networks. 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. A lan is a network of connected devices that exist within a specific location. Local area networks lan local area network lan is a computer network, which is limited to a small office, single building, multiple buildings inside a campus etc. The simplest of these backs up data over the local area network from the filer to a backup server. A lan is a private network that typically is made up of a wellconnected, reliable, and fast network connection.
Computer hardware resources like printers, modems, dvdrom drives and hard disks can be shared with the help of local area networks. Before discussing lan wan and man, let us know about the network network. Typically, a local area network lan is a private network owned and maintained by a single organization. Most indiana university bloomington departments are on lans. Local area network lan is based on client server network relationship. A lan local area network is a group of computers and network devices connected together, usually within the same building. Advantages and disadvantages of lan local area network. Typically, connected devices share the resources of a single processor or server within a small geographic area. There are some similarities and dissimilarities between them. A local area network lan is a group of computers and associated devices that share a common communications line or wireless link. What is local area network features and characteristics. Based on packet switching technologyexamples of wan technology. Data allocations in local area networks lans, metropolitan area networks mans, and wide area networks wans are subject to different requirements and considerations. A computer data communications network used within a limited physical location, such as a house.
On a local area network or other network, the mac media access control address is a computers unique hardware number. A computer bus is often highly parallel, with separate control, data, and address. 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. The first local area networks evolved in environments in which the distances to be spanned by the network were within the.
908 1326 1102 1000 392 297 342 436 669 517 317 1487 1458 1253 1479 368 982 1143 1400 1449 670 848 872 270 1548 1481 1292 1533 102 583 1313 1216 1242 1406 810 582 1149 753 860 1430 821 268 291