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... r ones, but they would be used for big businesses with many computers connected to the network. The router enables several hubs to be connected together from several LAN's. This would make the network a WAN. It has ports on it just like a hub does. The router will enable data to be sent from LAN to LAN in the WAN.
It is like a big relay station. It gets a signal from LAN 1 and finds out that the signal needs to be sent to LAN 2. It does so fast it is instantaneous. The cable that is the "highway" for networks is fairly basic.
It is known as CAT 5. Which means it is a Category 5 class cable. There are different Categories for cables. The lower the Category generally means a decrease in how much data can travel through it, which means slower speeds for the network. The cable has 8 strands of wire inside it. Each strand has a different color and either sends or receives information.
A magnetic shield located in the housing of the cable protects the strands from outside interference. Now that you know a little about the history of networking and the hardware that is in a network, I can explain how it all fits together. There are many steps that a network goes through to complete a task that was issued by an end user. I will explain each step of the process and give a schematic of the process.
The schematic that I am showing you is one of a LAN. It is a small network with six workstations and a server. Due to the fact that this is a LAN, there is no need for a router. However, you still see hubs, workstations, and servers. The network is complete when all pieces of hardware are connected to one another.
For instance, the workstations are connected to hubs via their network cards. The hubs are then connected to server hubs, which then leads to the server. It is a big chain, and if the chain gets broken anywhere down the line, the network will not function properly. The cable serves as the links to the chain. Sometimes, the cable can break, which will cause a fault.
The picture below will show this in greater detail. A WAN is really similar to the LAN. It looks basically the same except that there are more workstations and there would be a router connected to the file server hub. Without the router, data could not be shared between two networks. This is because each network has its own "fingerprint" which is called tcp / ip . This fingerprint enables only users who are properly configured for the network to use it.
If I were to try to log on to Kettering's network from my house, I could not do it. Even if I ran a cable from my house to Kettering, the task could not be completed. The only way for me to connect to their network is if I configured my computer to recognize Kettering's "fingerprint. " That is why a router is needed. It will allow two networks to properly identify each other, and thus allow data to be shared between them. Although the schematic below only shows a few workstations, it still gives a basic idea of the networking concept. The Benefits of Understanding Networking Now you are going to ask why all this is important to know.
I will give a few reasons why I think it is important. One thing that people misinterpret is that networks are complicated. This in turn will intimidate them. This is the wrong approach to take. Networking is not too complicated. The big problem is remembering all the technical jargon.
That is something that will take a little time, but learning the concept of networking is fairly simple. There are quite a few reasons why networks are important to understand. The first reason is that understanding them will help you at your job. There are a lot of times when people are using files off the network and they run into a problem. Usually, the person will have to call the network administrator for help. Sometimes the administrator is too busy to help you right away, or he / she may be gone for the day.
This means that you would have to either find something else to do, or cancel your plans on the project for that day. This will cost the company money, and money is really important (especially to your boss). If you knew how a network functions, you could solve the problem on your own. This means that you would save the company money. Understanding networking can also be beneficial in school. During the beginning of this term there was a new network installed.
Kettering did not give any information to the students on how to connect to this network from the dorm area. If you wanted to connect your computer to the network, you had to call computer services and they took you through a bunch of confusing steps. There were a few people that knew a lot about networks, so they helped everyone in the dorms connect to the network. This was really helpful to people that did not know anything about networking. However, if they knew how to do it on their own, they could connect themselves to the network and save time. These are only a couple of explanations why it is important to understand networks.
I will give a bulleted list of several other reasons to learn about networks. Employees can share information, such as inventory information, customer records, or accounting data. Employees can swap files without printing them or passing around disks. Employees who are traveling or telecommuting are able to access files and applications on the network from remote computers. All employees have access to both the Internet and e-mail.
Employees can use devices, such as printers and fax machines, without leaving their desks. A data communications network which is geographically limited to a 1 km radius allowing easy interconnection of terminals, microprocessors, and computers within adjacent buildings. Ethernet is an example of a standard LAN. A network usually constructed with serial lines extending over distances greater than one kilometer. A wide area network acts just like a LAN, but it covers a larger area.
It is used to connect several computers together. It enables computers to share data by being a relay station for the computers. Hardware connected to the motherboard of a computer. It will then be used to provide a physical connection to a network.
A device connected to a WAN that enables information to be sent to other computers on the WAN. A computer which is connected to a LAN or a WAN. On the Internet, "domain" is most commonly used to refer to a group of computers whose hostnames share a common suffix, the domain name. A set of networks that are interconnected with one another by a router. The Internet is the largest internet in the world. It is a three level hierarchy composed of several networks.
These include commercial (. com), university (. edu) and other research networks (. org, . net), and military (. mil) networks.
They span over many different physical networks around the world. The server is the mainframe computer in a network. It stores all data and runs the operating system for the network. All computers on a network have access to this computer. Bigelow, J.
Stephen. Troubleshooting & Repairing PC Drives & Memory Systems, 2 nd Edition. McGraw Hill. 1997 Holzmann, Gerard. The Early History of Data Networks. Lowe, Doug. Networking for Dummies (3 rd Ed).
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