Types Of Computer Network

Types Of Computer Network - In general, the types of computer network is a LAN, MAN, and WAN. Between three types of networks have widely different connection. I'll explain more detailed one by one.

1. Local Area Network (LAN)

LAN is a network that is limited by the relatively small area, generally bounded by the area of ​​environment, such as an office in a building, or of each room in a school. Normally no further antarnode distance of about 200m.

Judging from the very rapid technological developments, now most users are using LAN technology based on IEEE 802.3 Ethernet switch using the device, which has a data transfer speed 10, 100, or 1000 Mbit / s. In addition to Ethernet technology, the current 802.11b technology (or so-called Wi-Fi) is also often used to form the LAN. Places that provide LAN connectivity with Wi-Fi technology called hotspots.

On a LAN, each node or computer has its own computing power, in contrast to the concept of terminal dump. Each computer can also access resources on the LAN in accordance with the permissions that have been set. These resources can be data or devices such as printers. On a 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:

1. Having rapidly higher data

2. Covers a narrower geographical region

3. Does not require telecommunications lines leased from telecom operators

Usually one of the computers on the network computer will be used to manage all servers in the network system.

2. Metropolitan Area Network (MAN)

MAN connections usually have a wider area than a LAN, for example antargedung in a region (such as a province or territory of the State). In this case a network connecting several small networks into a larger area of ​​the environment. For example, a network of several offices of a bank branch inside a big city that dihungkan between one another.

MAN connection range is between 10 and 50 km, MAN is a proper network to build a network of offices in one city of factories / agencies and headquarters are located within its reach. in the MAN network has only one or two wires whose function is to organize the data packet through the output cable. Standards for MAN is currently being implemented. Standard is called the DQDB (Distributed Queue Dual Bus) or according to standard IEEE 802.6. DQDB consists of two unidirectional wires where all computers are connected.

3. Wide Area Network (WAN)

WAN is a network that is usually already using wireless media, means of satellite, cable or fiber optic cable, because its scope is broader than the LAN, and MAN. WAN not only covers one city but the WAN to reach the area / territory authorities of other States.

For example, the City Bank office computer networks that exist in each State, which are interconnected, network ATM Master Card, Vista Card or Cirrus dispersed throughout the world, etc..

WAN is usually more complicated and highly complex when compared to the LAN or MAN. Use many means to connect LANs and WANs into globlal communications like the internet, however between LAN, MAN, and WAN are not much different in several respects. Only the scope of its area being different from one another.