Computer Network also called Network is a group of computers and other devices connected to each other to share resources electronically. Networks can be as small as two computers or many thousand computers that are connected to one another. These computers are usually connected to one another through wires, satellite, and modems. Each device connected to the network is called a “node”, and the computer that is connected to the network is called a workstation. There are several ways to connect networks together, the way the Network is laid out is called Topology, and there are several types of topologies, Bus Topology, Star Topology, Ring Topology. There are several types of network, Peer to Peer Network, Client/Server Network. Depending on the size of networks they are divided into several categories and have different terms that specify these networks, LAN (Local Area Network), MAN (Metropolitan Area Network), and WAN (Wide Area Network). One of the primary reasons to network is to increase productivity and cut all the unnecessary costs. By connecting their office people can get the advantages of managing their data, all the data can be stored in a server computer instead of storing them in each workstations hard disk. This way you can easily back-up and manage your data. And whenever someone makes changes to files it will updated and everyone will have the access to the same updated file. The network administrator will decide to whom grant the access to the files. Another advantage of network is that it makes data transfer easy so you don’t have to transport files into Floppy disk, or USB device and walk over to your co-workers desk. Networking also will allow you to share the equipment like printer, if there are several hundred computers in an office building you don’t have to buy different printers for each computers instead you can just buy one or two printers that can be shared between all computers on a...
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