Computer Network

Computer electronic network also c every last(predicate) in alled Network is a group of calculating machines and other devices connected to each other to sh atomic number 18 resources electronically. Networks privy be as small as two computing devices or many thousand computers that ar connected to integrity and only(a) another. These computers are usually connected to star 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 bureaus to connect networks together, the fashion the Network is laid turn 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 dissever into several categories and swallow different terms that specify these networks, LAN (Local Ar ea Network), MAN (Metropolitan Area Network), and ghastly (Wide Area Network). One of the primary reasons to network is to increase productivity and cut all the unnecessary costs.By connecting their station people fucking get the advantages of managing their information, all the data can be stored in a master of ceremonies computer instead of storing them in each workstations hard disk. This way you can easily back-up and manage your data. And whenever soul makes changes to files it allow updated and everyone will have the access to the same updated file. The network administrator will decide to whom provide the access to the files. Another advantage of network is that it makes data transfer easy so you foundert have to transport files into Floppy disk, or USB device and walk over to your co-workers desk.Networking also will digest you to share the equipment like printer, if there are several hundred computers in an office building you dont have to buy different printers f or each computers instead you can just buy one or two printers that can be shared between all computers on a network. You can save on software too many software companies offer businesses software deals that are much affordable than purchasing separate software license for each computer, it also can save succession when the time to upgrade to a new version of a software you can just update it on a server instead of doing it on each computer.Another way of saving money is that you can share the internet too. As you can see networking computers has many advantages and it is recommended to network. As I mentioned above the way the networks are laid out are called network topology, today you will come across the networks that laid out uniquely using one type of topology or combination of different types of topologies these kind of topologies are also called a Hybrid Topology1. Bus.2. Star.3. Ring.The Bus Topology is older topology that is not seen that oftentimes and almost never used in raw networks.It is very easy to set up because all the computers are connected to each other using a single cable which is called a anchor or segment. Because all the computers connected to a bus network to one cable only one computer can send parcels of data (which are electronic signals) at a time. Bus topologies have some advantages they are easy to set up, and since they are on one line of cable if one computer fails it does not crash the entire network. They are also very inexpensive to set up because less cable is used.Despite the advantages of a bus topology there disadvantages too. One of the disadvantages of a bus topology is that if the cable used breaks, the entire cable needs to be replaced, and if the cable is too long it will hard to find out where the cable is broken. The bus topology is also not very ascendable if you have a small network it will be hard to expand it. It is also not very secure network. Even though the Bus topology is very easy to set up and inexpensive I t is very outdated, it should not be used in a modern networks.The Star Topology is a topology mostly used in modern networks although it is an older topology too, many modifications has been made to it to handle all the modern networking needs. In a star topology all the computers are connected separately to the Hub or Switch, and all computers have their own cable. When a computer sends the packets of data to other computers in the network it is sent through the cable to the hub or careen, then it passes the data packet to other computers that are connected to it.Since the computers in a star topology are connected to the switch separately and all the computers have their own cables, in case it brakes it is easy to configure the problem. The computer that breaks down is the only computer that will not have access to the network, and all the other computer are not affected because they have their own cables connected to the switch. Another benefit the star topolo gy has is that it is scalable and can be expanded anytime. The star topology is the most used topology in modern networks and it is recommended to use the star topology if you are setting up a network.