Thursday, 5 October 2017

DIFFERENCES OF LAN,WAN AND MAN (Classification networks)


 There are different types of area networks, and all of them are used to execute different needs. Some of the key features that differentiate these networks are size of the network, area covered and the technology that is used. The three types of computer networks are Local Area Network (LAN), Wide Area Network (WAN) and Metropolitan Area Network (MAN). This article will cover some important information about these networks, their differences, advantages, and disadvantages.

 

 

What is LAN (Local Area Network)?

Local Area Network is an interconnection of computers and its related devices within a small geographical area where the distance between the computers is small. Some of the LANs include office network, school, and home. Most of the LANs are built for the purpose of sharing vital resources such as printers and exchanging files.

LAN is also used in providing other services such as sharing computer applications, gaming and accessing the internet. This type of network is under the control of one administrator who is in charge of the configurations and settings and other computers are linked through Ethernet cables and wireless routers.


What is WAN (Wide Area Network)?

WAN (Wide Area Network) is a connection between computers over a large geographical area. The connection can be between different cities or even countries. A WAN network can be a collection of small networks that have been combined, or it can be as a result of various private business entities. One known best example of WAN is the internet, since it connects computers from different corners of the world.

WANs are too complex to be managed by private administrators, and for that reason, they usually have a public ownership. Computers in this network can be connected either by cables or through a wireless connection.
  



What is MAN (Metropolitan Area Network)?

MAN (Metropolitan Area Network) comes in between LAN and WAN. Just as the name suggests, MAN is a type of network that connects computers within a specific geographical area. The area that is covered by this network is larger than that in LAN but smaller than that in WAN. MANs are mostly used to provide fast connections to cities and large institutions.

MANs vary in sizes depending on the area to be covered, and some of the examples include; an interconnection within the city of London or New York. Campus Area Network (CAN) such as those that are within universities are also MAN.

     Difference Between LAN,WAN AND MAN


  • The size of the area or distance that the network covers.
  • The speed of the network.
  • Type of technology that is used by the network.
  • Application areas or uses of the network.
 

ADVANTAGES AND DISADVANTAGES OF LAN,WAN AND MAN


Advantages of LAN

  • Easy to manage since all the computers can be controlled from a central point. The administrator of the network can easily monitor all the activities that are taking place in other computers with much ease.
  • LANs allow people in an organization to share peripheral devices such as printers and scanners. This cuts down on the cost of buying new devices for each computer.
  • Because of the high speed, sharing of the resources in a LAN can take place easily without any bottlenecks. Files and data can be transferred from one computer in the network to another in the shortest time possible.

Disadvantages of LAN

  • The main disadvantage of LAN is limited coverage. The network covers a small geographical area.
  • A problem in the server computer will render all the other computers useless.

Advantages of WAN

  • WAN is not limited by geographical factors. It can cover all the corners of the world.
  • WAN network exposes your computer to a larger network. You will be connected to millions of other computers and even more networks.
Recommended: Does Your WiFi Keep Disconnecting? Here’s What To Do

Disadvantage of WAN

  • The speeds of WAN can be very slow and this can be a major source of frustration.
  • The cost of setting up WAN especially in remote areas can be extremely high.
We believe you now know in details what these types of area networks are, their similarities and differences.

 

Advantages of MAN

  • MAN experiences comparatively high speeds and this facilitates faster sharing of resources such as files within a city.
  • Covers a comparatively larger area more than LAN.

Disadvantages of MAN

  • One main disadvantage of the MAN is the high cost. The cost of technology that should be deployed for this network is extremely high.                                                                                                                                                                                                                  hopefully this information will help u ;-)... Thank you 4 visiting my blog...                         

Thursday, 28 September 2017

Hi im Newbie :)




      

The Advantages & Disadvantages of The Internet:


  The Internet or the World Wide Web is indeed a wonderful and amazing addition in our lives. The Internet can be known as a kind of global meeting place where people from all parts of the world can come together. It is a service available on the computer, through which everything under the sun is now at the fingertips of anyone who has access to the Internet.
To get ‘online’, meaning to connect to the Internet, you need to have:
  • A Computer: Computer equipment is a size able investment and thus you should select a computer carefully. Before buying a computer, understand your needs and then choose one accordingly. See that it comes with a warranty and that after sales service is available in case you need it.
  • Internet Service Provider: This is the software that you will require to get online. You can now choose from a dial-up service or 24-hour broadband services. This is the service that will help you to connect to the Internet and start your surfing experiences.     

    Advantages of the Internet

    The Internet provides opportunities galore, and can be used for a variety of things. Some of the things that you can do via the Internet are:
  • E-mail: E-mail is an online correspondence system. With e-mail you can send and receive instant electronic messages, which works like writing letters. Your messages are delivered instantly to people anywhere in the world, unlike traditional mail that takes a lot of time.
  • Access Information: The Internet is a virtual treasure trove of information. Any kind of information on any topic under the sun is available on the Internet. The ‘search engines’ on the Internet can help you to find data on any subject that you need.
  • Shopping: Along with getting information on the Internet, you can also shop online. There are many online stores and sites that can be used to look for products as well as buy them using your credit card. You do not need to leave your house and can do all your shopping from the convenience of your home.
  • Online Chat: There are many ‘chat rooms’ on the web that can be accessed to meet new people, make new friends, as well as to stay in touch with old friends.
  • Downloading Software: This is one of the most happening and fun things to do via the Internet. You can download innumerable, games, music, videos, movies, and a host of other entertainment software from the Internet, most of which are free.

Disadvantages of the Internet

There are certain cons and dangers relating to the use of Internet that can be summarized as:
  • Personal Information: If you use the Internet, your personal information such as your name, address, etc. can be accessed by other people. If you use a credit card to shop online, then your credit card information can also be ‘stolen’ which could be akin to giving someone a blank check.
  • Pornography: This is a very serious issue concerning the Internet, especially when it comes to young children. There are thousands of pornographic sites on the Internet that can be easily found and can be a detriment to letting children use the Internet.
  • Spamming: This refers to sending unsolicited e-mails in bulk, which serve no purpose and unnecessarily clog up the entire system.
If you come across any illegal activity on the Internet, such as child pornography or even spammers, then you should report these people and their activities so that they can be controlled and other people deterred from carrying them out. Child pornography can be reported to:
  • Your Internet service provider
  • Local police station
  • Cyber Angels (program to report cyber crime)
Such illegal activities are frustrating for all Internet users, and so instead of just ignoring it, we should make an effort to try and stop these activities so that using the Internet can become that much safer. That said, the advantages of the Internet far outweigh the disadvantages, and millions of people each day benefit from using the Internet for work and for pleasure.