LAN is the technology of the present

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2018-03-21 04:34:11

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At present a very large spread of computer networks. With them, users can work with the same resources, applications, data, without leaving your own workplace.

What is a LAN?

The Most common type of networks-local area network. LAN it

LAN – is a computer network that connects the local machine to a user located at some distance from each other. Although the range of such a network reaches a few kilometers, it is typically used to link computers in a short distance. Typically, this is a working machine of one enterprise or home PCs.

LAN Configuration

The configuration it is possible to note local network with the server running and without (peer).the design of the LAN

Equal LAN

In such networks, all computers have similar technical characteristics. Peer-to-peer LAN – it is a local network in which each workstation can perform all the functions of both client and server. For effective load distribution in such a LAN, the number of participating computers can not be more than 10. Otherwise, it suffers the performance of the entire network.

Network server is running (multi-level)

In such a LAN one of the computers has a better performance, memory capacity and other indicators. This PC is assigned by the server. The servers in LAN – computers with high performance and large memory compared to your local machine. It provides interaction between other computers on the network that stores shared files and organizes access to them, transfers the data to the client in the form of information to process or end result. LAN in which the server is used only to embed shared data, are called networks with a dedicated file server. Along with these systems there is a LAN in which the server is also processing of information, and the client receives only the result. This so-called client-server system.

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Topology LAN

All computers in the network at the physical level interconnected. Topology LAN – is a way to connect local machines. Now in local networks are ways of connecting, such as bus, star and ring.

Bus topology

In a LAN, the installation of which is planned according to this topology, when assembling use a single cable that joined the user's local computer. Thus, the information from one machine passes through all the others. Workstation, which is addressed to the data, selects the desired information from the General stream.topology LAN

The advantages of LAN bus topology:

  • Failure of one of the endpoints does not affect the operation of other machines and the network as a whole;
  • Relatively simple setup and design of the LAN;
  • Relatively small cost of consumables (with a small radius of action, for example, within the same organization).

The Disadvantages of the topology:

  • Cable damage blocks the network as a whole;
  • Limited range and small number of users;
  • A relatively small speed (depending on the number of computers in the network).

Topology “star”

The Topology of this type involves the interaction of local computers through network equipment (hub or hub) that provides a parallel connection of working machines. Each station is connected to the Central device via a network card with a separate cable. As in the previous topology, the outbound data is available for all computers on the network and accepted only by the user, for which they are intended.LAN installation

The Advantages of the topology:

  • Ease of organization of the new workplace;
  • High performance
  • A quick search of fault or cable breakage;
  • On the network do not influence the failure of individual local machines.

The Disadvantages of the topology:

  • The failure of the Central unit stops the operation of the entire network;
  • The number of users is limited by the number of ports of a Central device;
  • Uneconomical in consumption of the cable;
  • The cost of purchasing a hub (or other network equipment).

Topology “ring”

LAN, the installation of which is made in accordance with the rules of this topology consists of series-connected working machines, forming the ring. The data in this case pass from one computer to another and stop at that, to whom they are addressed.LAN

The Advantages of topology “ring”

  • There is no cost to network equipment (hub, router);
  • The ability to transfer information to multiple computers at the same time.

The Disadvantages of the topology:

  • The performance of the entire network depends on the performance of each computer;
  • If the cable break or failure of one system locks the availability of the entire network;
  • Difficulty settings and configuration;
  • Organize a new workplace for a time paralyzedwork LAN.

Topology “ring” is almost never used in practice because of the General unreliability, but is subject to various modifications.

At present, almost no organization is complete without a LAN. More common network topologies “star” because of their reliability and resistance to failures. LAN topologies “ring”, in contrast, do not meet modern health and safety. But LAN in General is firmly established in our life and contribute to the effectiveness of any enterprise.


Article in other languages:

AR: https://tostpost.com/ar/computers/11915-lan-is-the-technology-of-the-present.html

BE: https://tostpost.com/be/kamputary/21319-lvs---geta-tehnalog-suchasnasc.html

DE: https://tostpost.com/de/computer/21326-lvs---technologie-ist-dieses.html

ES: https://tostpost.com/es/los-ordenadores/21344-lan-es-la-tecnolog-a-del-presente.html

HI: https://tostpost.com/hi/computers/11924-lan-is-the-technology-of-the-present.html

JA: https://tostpost.com/ja/computers/11926-lan.html

KK: https://tostpost.com/kk/komp-yuterler/21307-zhezh---b-l-tehnologiya-osy.html

PL: https://tostpost.com/pl/komputery/21277-lan---to-technologia-niniejszej.html

PT: https://tostpost.com/pt/computadores/21278-a-lan-uma-tecnologia-do-presente.html

TR: https://tostpost.com/tr/bilgisayarlar/21318-lan-bu-teknoloji-mevcut.html

UK: https://tostpost.com/uk/komp-yuteri/21300-lom---ce-tehnolog-c-ogo.html

ZH: https://tostpost.com/zh/computers/12669-lan-is-the-technology-of-the-present.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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