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What is a Local Area Network (LAN)?

Raj is an ardent coder who loves exploring new technology. He is an IT pro with 9 years of exp in C#, Angular, React, Vue.

LAN is acronyms of Local Area Network. LAN is required everywhere, whether it is office home or somewhere else. LAN is a small computer network (small version of internet) covering a small area like home, office building, school, college etc. 
The important characteristics of LANs over WAN or Internet is higher data-transfer rates (up to 1 GBPS), smaller geographic region, and no need for leased telecommunication lines.

A LAN can be one of two kinds: wired or wireless. In wired LAN connection Ethernet (UTP) cable is physically connected to all computers on the network through a main device called a switch or hub. A WLAN (wireless LAN) uses radio waves to communicate thus eliminates the need for wires. But WLAN is expensive than wired LAN.

LAN

what-is-lan-local-area-network

Advantages of LAN

A computer connected to a network significantly expands their capacity than a normal desktop because it has shared resources of all computers connected to network. Do your own two or more computers? By networking them, you can:

  • Share a single Internet connection. In Windows XP you can share a single internet connection over a LAN. By sharing one Internet connection, you and your network users can simultaneously surf the web on their computer without interrupting other member on a different computer. This reduces your internet charge also. Buying internet for all family members is not required. Click here for Internet Sharing tutorial.
  • Share a printer, scanner, and other hardware. Suppose you have a printer that is connected to a computer in another room of office or home. If you want to print a document, have to copy document onto a removable storage and take it to the computer that has the printer. With networking, you can print to this printer from your computer directly.
  • Share files and folders. Suppose your friend or junior in office wanted you to check a document, he or she doesn’t need to carry that document from ground floor to 4th floor. When computers are networked together you can open the file from your computer, make changes, and then save the file on that computer without interrupting others.
  • Play multi-computer games. By networking and sharing an Internet connection, networked computer members can play games on separate computers with each other or on the Internet with unknown players. And while they're playing online, one can surf the web, too — for example, checking emails, visiting stock exchange websites, checking current score of a cricket match.
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Books on LAN

Printer & Scanner

Conclusion

These are few important advantages of LAN. There are lots more uses of LAN nowadays. Everyone use this for different purpose. If try to find its use in Enterprise sectors, it will be different from home use. So use of LAN varies from person to person.

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    The process of crimping is so simple that, if carefully followed, a newbie can also do this with no difficulty. Because this is a crossover connection (i.e. PC to PC connection, no hub or switch will be used)...
  • How to share an internet connection on LAN?
    If you have a fully functional LAN then net sharing is few click away, yes few clicks. I assumed that you have already a broadband connection and account configured on your PC. Just go to “My Network...
  • How to share folder in windows XP
    In this tutorial we will learn how to share a folder or file so that other user on network can share file with your PC. This is very easy process which will allow you to a file or folder or drive of your...
  • Setup LAN with Hub or Switch
    Switch or HUB allows us to add more computers in our LAN or existing LAN. Switch or HUB is usually needed when we are networking more than two PCs. Why we need Switch or HUB only when networking more than two...

Comments

ANMOL BHAUTIK on May 16, 2012:

I AM SATISFIED U R INFORMATION AND SURE

Bhausaheb on September 27, 2011:

i am very happy for this information

Thank you

RAJKISHOR SAHU (author) from Bangalore, Karnataka, INDIA on March 15, 2009:

You can post comment or ask me questions related to this hub. Thanx

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