Local Area Network (LAN) Definition - Commonly abbreviated Local Area Network LAN is a computer network that the network only covers a small area; such as campus computer networks, buildings, offices, in homes, schools or smaller. Today, most LAN based on the IEEE 802.3 Ethernet technologies using a switch device, which has a data transfer speed of 10, 100, or 1000 Mbit /s.
In addition to Ethernet technology, the current 802.11b technology (commonly called Wifi) is also often used to form a LAN. Places that provide LAN connectivity with Wi-Fi technology commonly called hotspots. On a LAN, each node or computer has the computing power of its own, different from the concept dump terminal. read Metropolitan Area Network Definition
Each computer also can access the resources on the LAN in accordance with the permissions that have been set. These resources can be data or devices such as printers. On the LAN, a user can also communicate with other users by using the appropriate application. In contrast to Wide Area Networks or Wide Area Network (WAN), the LAN has the following characteristics:
In addition to Ethernet technology, the current 802.11b technology (commonly called Wifi) is also often used to form a LAN. Places that provide LAN connectivity with Wi-Fi technology commonly called hotspots. On a LAN, each node or computer has the computing power of its own, different from the concept dump terminal. read Metropolitan Area Network Definition
Each computer also can access the resources on the LAN in accordance with the permissions that have been set. These resources can be data or devices such as printers. On the LAN, a user can also communicate with other users by using the appropriate application. In contrast to Wide Area Networks or Wide Area Network (WAN), the LAN has the following characteristics:
Rapidly have higher data
Covering a geographical area that is narrower
Do not require leased telecommunication lines from telecom operators
Usually one of the computers in the computer network will be used as a server that manages all systems in the network.
The working principle Local Area Network
Working Principle LAN, LAN can be defined as a network or a network of computer systems whose location is limited in one building, a complex of buildings or a campus and not using the media facilities general communications such as the telephone, but the owner and manager of media communications is the owner of the LAN itself from the definition above we can know that a LAN is limited by physical location.
As for the use of LAN itself lead to all computers connected in a network can exchange data or otherwise related. This cooperation is growing from just a data exchange to use the equipment together.
LANs generally use a hub / switch, will follow the working principle of the hub itself. In this case is that the hub does not have knowledge of the destination address so that broadcast data delivery, and also because the hub has only one collision domain so that if one of the busy port, the other ports must wait. That is among the advantages and disadvantages LAN network.
How to Make Network LAN ?
LAN is a local computer network used in confined areas such as home or school. LAN network is very easy to make because it only requires some equipment and settings on the computer. (Also Read: Tricks Overcoming Computer / Laptop Slow) This time I will give a brief article 'how to create their own lan' on windows 7.
A tool for building a LAN network
a. Router
The router is the heart of the network. Router serves to connect one network to another network. In this case, the router connects to the Internet network LAN network. read : What is the internet
Switch
In contrast to the router, switch serves to connect each computer on a LAN network.
b. Ethernet Card
Ethernet card is an adapter for plugging an Ethernet cable so that the computer can connect to the network. Typically, the latest computers, these cards have been pinned in onboard so you do not need to buy again.
c. Ethernet Cable
Namely cable used to connect the computer to a router or can be one computer to another computer. At the end of this cable was given a connector called RJ-45 connectors. RJ-45 has two settings, namely straight and crosses. Straight is used to connect a computer to the router while the cross used to connect a computer directly to a computer.
d. Modem
If you want to connect your network to the Internet, then you also have to buy a modem. If you do not buy a modem, then your computer can only communicate with other computers that are on the LAN network.
e. Other equipment
Crimping tool, LAN tester, scissors, MultiMate.
Crimping tool is used to connect the RJ-45 Ethernet cable. LAN tester used for testing LAN cable is functioning or not. As an alternative to accelerate or facilitate your work, you can ask for help to the seller of the Ethernet cable to simultaneously egg q- pair 45 so you just pair cables to the router and computer.
Before setting up the equipment above, it is recommended you do advance planning, which includes the number of computers, wide area, so you can make an effective cable design so they can save costs. You bia using software such as paint to create a design of your network arrangement. After that, then you buy the necessary equipment and attach it on top of cutting edge equipment.
Internet is at the same modem router that connects computers to the internet server
Computer server
Switch
Once the hardware is installed, it is setting the stage for the software. This setting includes the OS installation, network connection settings, configure TCP / IP address, the last is a test network that you have installed.
Connecting enable Internet Sharing
ICS aims to share the host computer's Internet connection to the other computer. To enable ICS on a computer server, please open the Control Panel, click Network and Internet, click Network and Sharing Centre, click Change Adapter Centre, Right click on the connection you want to share, click Properties, click the Sharing tab, then check the box Allow other network users to connect through this computer's Internet connection, save.
Okay, up to this stage, only the server computer that can connect to the internet after the connection is shared, then each computer must obtain an IP address. The trick opens the Control Panel, click Network and Internet, click Network and Sharing Centre, click Change Adapter Centre.
Right click on the LAN connection, click Properties
Click Internet Protocol Version 4 (TCP / IPv4) or Internet Protocol Version 6 (TCP / IPv6), and then select Properties
Click Obtain an IP address automatically or obtain an IPv6 address automatically.
Summary
Commonly abbreviated Local Area Network LAN is a computer network that the network only covers a small area like a campus computer networks, buildings, offices, in homes, schools or smaller. Today, most LAN based on the IEEE 802.3 Ethernet technologies using a switch device, which has a data transfer speed of 10, 100, or 1000 Bit / s.
In addition to Ethernet technology, the current 802.11b technology (commonly called Wi-Fi) is also often used to form a LAN. Places that provide LAN connections with Wifi technology commonly called hotspots.
Computer server
Switch
Once the hardware is installed, it is setting the stage for the software. This setting includes the OS installation, network connection settings, configure TCP / IP address, the last is a test network that you have installed.
Connecting enable Internet Sharing
ICS aims to share the host computer's Internet connection to the other computer. To enable ICS on a computer server, please open the Control Panel, click Network and Internet, click Network and Sharing Centre, click Change Adapter Centre, Right click on the connection you want to share, click Properties, click the Sharing tab, then check the box Allow other network users to connect through this computer's Internet connection, save.
Okay, up to this stage, only the server computer that can connect to the internet after the connection is shared, then each computer must obtain an IP address. The trick opens the Control Panel, click Network and Internet, click Network and Sharing Centre, click Change Adapter Centre.
Right click on the LAN connection, click Properties
Click Internet Protocol Version 4 (TCP / IPv4) or Internet Protocol Version 6 (TCP / IPv6), and then select Properties
Click Obtain an IP address automatically or obtain an IPv6 address automatically.
Summary
Commonly abbreviated Local Area Network LAN is a computer network that the network only covers a small area like a campus computer networks, buildings, offices, in homes, schools or smaller. Today, most LAN based on the IEEE 802.3 Ethernet technologies using a switch device, which has a data transfer speed of 10, 100, or 1000 Bit / s.
In addition to Ethernet technology, the current 802.11b technology (commonly called Wi-Fi) is also often used to form a LAN. Places that provide LAN connections with Wifi technology commonly called hotspots.
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