Computer Network-Network Topology-Lan and Wan

A computer network are an group of two or many computers connected to each electronically. These means that the computers could "speak" to one another and that all computer in the network can send data to the other people. Commonly, these means that the speed of the connection are fast - faster than a normal connection to the Internet. In fact, two computers connected across the Internet isn't considered a computer network. A few basic characters by computer networks let in:

* A local area network (a great deal called a local area network) connects two or many computers in a home or an business office.
* A corporate network enables communicating one of various business office* by the same administration.
* An "internet work", some of the times called a WAN (because of the wide distance between networks) links two or more littler networks together. The biggest internetwork are called the Internet.

Out of this LAN and WAN are the two central networks designated about the base of their breadth.

Networks could as well live divided supported their organization. This may be Peer to Peer Network, Server-based Network or Client-Server Network, cross Network etc.

Computers can be break of more another networks. Networks could as well cost breaks by larger networks. The local area network in a department memory are generally connected to the corporate network of the bring up caller, and might accept favours with the corporate network of a bank building. Whatever connected machine at whatever charge of the administration possibly able to access the Internet, e.g. to show computers in the memory, show its catalogue through a internet server, or change accepted arranges into shipping instructions.

Microsoft Windows, Linux and most extra operating systems apply TCP/IP for networking. Apple Macintosh computers used Appletalk in the past times, but it uses TCP/IP at once.

To arrange a network an allow media are required. This can live wired or wireless. Twisted-pair, co-axial or fiber-optic are examples of cable and infrared radiation, blue-tooth, radio-wave, micro-wave etc. are wireless media employed for networking. When you're working on a simple LAN, computers, media and computer peripheral* are comfortable. But when you're working on a wider ambit you've use a few additional devices like bridge, gateway or router to link up another small or large networks. And obviously a communications protocol must be conserved.

To arrange a network you've to select a allow topology to arrange the hardware devices using the media. Network topology* commonly used are bus-topology, ring-topology, star-topology, tree-topology, object-oriented topology etc. Among these star-topology and tree-topology are most popular now a hours.