Describe localarea networks lans explain the functions of widearea networks wans describe analog and digital signals. A local area network in a digital library can provide access to centralized collection of digital books for many readers using different computers in library building. An introduction to local area networks research mit. In lan multiple computers are monitored with one or more administrators. Local area network is a network of computers and devices within a room or single building. A network used to integrate devices in the home and connect to the internet. A group of two or more computer systems linked together. A local area network lan is a collection of devices connected together in one physical location, such as a building, office, or home.
Networks can be defined as a collection of independent computers and other devices interconnected by a communication medium, such as coaxial cables, twisted pairs of optical fibers. In the early days of networking, lans are defined as small networks that existed in a single physical location. The communication between different users of wan is established using leased telephone lines. Several different cable types can be used for this pointtopoint link, such as shielded twistedpair stp, unshielded twistedpair utp, and. In terms of geographic breadth, mans are larger than localarea networks lans, but smaller than widearea networks wans. Local area network can be used in an office to share common data and a network printer and any other software or hardware. Lan, man and wan are the three major types of the network designed to operate over the area they cover. A lan is a private network that typically is made up of a wellconnected, reliable, and fast network connection. A local area network generally provides highbandwidth communica tion over inexpensive transmission media. 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. An access point usually consists of a radio, a wired network interface e. Local area network, lan, network, wan, wide area network, man, metropolitan area network, developing country, communications, communication media. List the different types of hardware found in a lan or a wan.
Local area network resides within a small geographic area. A local area network is a network that connects devices at a single location. Computer accessories include printers, scanners, game consoles etc. The access point acts as the base station for the wireless network, aggregating access for.
Alternatives on the lan framework include cans, mans, and wans. A lan based on wifi wireless network technology metropolitan area network. The simplest type of lan network is to connect computers and a printer in. Wide area network wan when network spans over a large distance or when the computers to be connected to each other are at widely separated locations a local area network cannot be used.
Computer hardware resources like printers, modems, dvdrom drives and hard disks can be shared with the help of local area networks. Lans may be compared with respect to the method of interconnection of the participating devices topology and connection medium and to. Most lans are used to connect computers in a single building, campus, office or room etc. A network spanning a physical area larger than a lan but smaller than a wan, such as a city. Advantages and disadvantages of lan local area network. 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. Typically, each vendor would have its own type of network card, cabling, protocol, and. Local area network library and information science. 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. All three of these network options are illustrated below. Ip is a standard that defines the manner in which the network layers of two hosts interact. A computer network can be categorized by their size.
Mans are usually characterized by very highspeed connections using fiber optical cable or other digital media. That is, all of the nodes are connected in a closed loop. A lan is very useful for sharing resources, such as data storage and printers. In the world of local area networks, there are basically two choices of network control, or network types. This is done to communicate, exchange data and to integrate things and experiences. Types of networklan,man,wan types of computer network. A local area network lan is a network that is confined to a relatively small area. This type of network is large than a lan, which is mostly limited to a single building or site.
A local area network lan is a private computer network that connects computers in small physical areas. Types of network local area network lan the term lan refers to a local network or a group of interconnected network that are under the same administrative control. A local area network lan could be a cluster of computers and associated devices that share a standard communications line or wireless link to a server. 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. It normally connects the computers and other devices within one office, building or a group of nearby buildings.
Local area network is a network for connecting computers and other computer accessories with each other. A concept related to that of the backend network is the storage area network san. An access network may be a socalled localarea network within a company or university, a dial telephone line with a modem, or a high speed cablebased or phonebased access network. The computers are connected with each other through multiple ways like fiber optics, coaxial cables, and wireless. Local isps are in turn connected to regional isps, which are in turn connected to national and international isps. 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. Introduction to local area networks lans network architecture.
A local area network may serve as few as two or three users in a homeoffice or several hundred users in. For example, this can allow everyone in a home to access shared files. Local area network lan, any communication network for connecting computers within a building or small group of buildings. Ip addresses are 32 bit long, hierarchical addressing scheme. There are some similarities and dissimilarities between them.
Personal area network pan a personal area network pan is a computer network used for communication among computer devices, including telephones and personal digital assistants, in proximity to an individuals body. Compare characteristics of different network cabling types. It is a widely useful network for sharing resources like files, printers, games, and other application. It also discusses the relationship of local area networks to long. Computer networking and management lesson 1 computer. 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 networks lan and wide area networks wan. What are the different types of local area networks. Plc communication schemethe local area networkand the role it plays in achieving factory integration. Man metropolitan area network wan wide area network pan personal area network. The choice of these two networks basically determines the relationship each pc or device on the network has with the other in terms of.
Local area networklan is based on client server network. A local area network lan is a computer network that interconnects computers within a limited. Three types of lan protocol polling, contention and token passing protocol. A local area network, or lan, consists of a computer network at a single site, typically an individual office building. Local area network lan the first kind of network based on geography is the local area network or lan. A l ocal a rea n etwork lan is a group of computer and peripheral devices which are connected in a limited area such as school, laboratory, home, and office building.
Depending upon the type of configuration, this type of network allows you to cover an area from several miles to tens of. To provide some insight into the types of requirements that lans are intended to meet, the following sections discuss some of the most important general application areas for these networks. A local area network covers individual buildings or public hotspots, spanning hundreds or thousands of square feet. The devices may or may not belong to the person in question.
Metropolitan area network man short for metropolitan area network, a data network designed for a town or city. An example of a local area network would be the network inside a particular company or the network at our home. 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. This lecture is different from other lectures on this toipc. The network allows computers to connect and communicate with different computers via any medium. 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. This paper discusses what local area networks are, their structures, the sorts of protocols that are used with them, and their applications. Explain different types of computer networks lan, man. Lan topologies the application in use, such as multimedia, database updates, email, or. Lan is used to make the connection of computers within one building.
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 highspeed, mediumdistance communication system. Types of area networks lan, man and wan geeksforgeeks. 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. What is lan and different components of local area network. Advantages and disadvantages of local area network lan. Not sure what you are asking, but there are a couple of answers. A metropolitan area network or man is consisting of a computer network across an entire city, college campus, or a small region. A man is typically owned and operated by a single entity such as a government body or large corporation. 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 lan is composed of interconnected workstations and personal computers which are each capable of accessing and sharing data and devices, such as printers. One of the major differences is the geographical area they cover, i. The entire network shuts down if there is a break in the main wire and it can be difficult to identify the problem if the network shuts down.
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