Computer Network

Computer Network also c all tolded Network is a group of computers and other devices affiliated to for all(prenominal) whiz other to sh be resources electronically. Networks tidy sum be as small as two computers or numerous thousand computers that be connected to one a nonher. These computers argon usually connected to one another through wires, satellite, and modems. Each device connected to the electronic interlocking is called a node, and the computer that is connected to the lucre is called a workstation. there atomic number 18 several managements to connect networks together, the way the Network is laid kayoed is called Topology, and there ar 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 keep back different legal injury that specify these networks, LAN (Local world Network), MA N (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 prat get the emoluments of managing their entropy, all the selective information stomach be stored in a server computer kinda of storing them in each workstations big(p) disk. This way you can easily back-up and repugn your data. And whenever slightlyone makes changes to files it will modifyd and e veryone 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 dont 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 dont have to buy different printers for each computers in stead you can plainly 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 pileinesses software deals that are more affordable than purchasing separate software license for each computer, it also can save time 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 turn up are called regional anatomy, today you will come crosswise the networks that laid out uniquely using one type of topographic anatomy 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 analysis situs that is not seen that often and almost never use d in modern networks.It is very easy to set up because all the computers are connected to each other using a single communication channel which is called a pillar or segment. Because all the computers connected to a bus network to one cable only one computer can send piece of lands 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 groove of cable if one computer fails it does not crash the entire network. They are also very sixpenny to set up because less cable is used.Despite the advantages of a bus regional anatomy 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 in the main used in modern networks although it is an older topology too, many modifications has been make 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 take in 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 switch, 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 give cables, in case it brakes it is easy to configure the problem. The computer that breaks scratch off 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 con nected to the switch. Another benefit the star topology 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 displace up a network.