A lan is a network that is used for communicating among computer devices, usually within an office building or home. A network refers to two or more connected computers that can share resources such as data, a printer, an internet connection, applications, or a combination of these. In terms of the osi reference model, the radio signal operates at the physical layer, and the data format controls several of the higher layers. These cables share the same physical characteristics as other types of network cables except that patch cables tend to be a shorter length. As several devices are connected to network, it is important to ensure data collision does not happened when this devices attempt to use data. Long haul network wan man lan lan 1 2 man lan lan 1 2 long haul network provides signal transmission link between distant regions within a country, countries, and continents. Coax, twisted pair, and fiber optic types of patch cables exist. Network devices hub, repeater, bridge, switch, router, gateways and brouter 1. A technical supplement to control network page 1 understanding ethernet switches and routers this extended article was based on a twopart article that was written by george thomas of contemporary controls and appeared in the february and march 2011 issues of intech magazine an isa publication. Data communications and networking second edition behrouz a. To complete our examination of networking on a physical level, this chapter looks at the network devices that are used to create networks. Introductiona network can be defined as a group of computers and other devices connected in some ways so as to be able to exchange data.
Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network. Networking andnetworking and internetworkinginternetworking devicesdevices 2. It uses packet switching technique to receive, store and forward data packets on the network. Each of the devices on the network can be thought of as a node. This representation can include the location of equipment cables, posts, connectivity devices. Introduction to network cables and network cable types. A network connects computers in your organization we will devise all the necessary equipment and software. Internetworking is the process or technique of connecting different networks by using intermediary devices such as routers or gateway devices. Policy on acceptable network and device use ensures that employees use government electronic networks and devices in an acceptable manner, and provides employees with open access to the internet, including web 2. Principles, protocols and practice, release techniques allow to create pointtopoint links while radiobased techniques, depending on the directionality of the antennas, can be used to build networks containing devices spread over a small geographical area. A network can be as small as distance between your mobile phone and its bluetooth headphone and as large as the internet itself, covering the. The network structure includes the wireless network interface adapters and base stations that send and receive the radio signals.
A hub also acts as a repeater in that it amplifies signals that deteriorate after traveling long distances over connecting cables. Network devices are components used to connect computers or other electronic devices together so that they can. When you sit down to get something done on your computer, you may not realize it but youre relying on more than your internet browser to get information, go shopping or send emails. Fundamentals of computer networking and internetworking. System area network cards are highperformance devices capable of coping with the demands of clustering applications. It is a central connection point for several network devices. Choose from 500 different sets of network devices flashcards on quizlet. A network can be defined as a group of computers and other devices connected in some ways so as to be able to exchange data. Network devices hub, repeater, bridge, switch, router, gateways and brouter.
Nic allows a networking device to communicate with the other networking device. This is also known as network adapter card, ethernet card and lan card. Download free network topologies tutorial course material and training in pdf file under 4 pages by maninder kaur. Some networking professionals use the term patch cable to refer to any kind of straightthrough network cable used for a temporary purpose. A hub is the simplest in the family of network connecting devices because it connects lan components with identical protocols. Does the device provide encryption, nat, bandwidth monitoring tools, or other features critical to the intended network design. Computer networking devices explained with function. To support this feature there exists many networking relay devices that facilitate communication between heterogeneous networks.
Samsungs network is designed to help our technologyforward customers address the next wave of mobile application development and internet of things iot, connecting billions of devices and accelerating low. Installation and configuration of a network interface card. In the list of the networking devices, nic stands on the first place. Network devices hub, repeater, bridge, switch, router, gateways. Nic converts the data packets between two different data transmission technologies.
Internetworking ensures data communication among networks owned and operated by different entities using a common data communication and the internet routing protocol. Switch is a network device that connects other devices to ethernet networks through twisted pair cables. Our highperformance networking for large and small businesses. A network can be as small as distance between your mobile phone and its bluetooth headphone and as large as the internet itself, covering the whole geographical world. The switch maintains a list of network addresses of all the devices connected to it. Introduction to networking devices subodh mca institute. Policy on acceptable network and device use canada. Lans enable the sharing of resources such as files or hardware devices that may be needed by multiple users is limited in size, typically spanning a few hundred meters, and no more than a. Star metropolitan area network interconnects users in a city and its. Fig 1 gives an example of a network in a school comprising of a local area network or lan connecting computers with each other, the internet, and various servers. Computer networks pdf notes free download cn notes.
Networking devices 61 to the ring out ro port on another msau. All devices have separately installed scope features, per network requirements and scenarios. Data communication and computer network 3 generally, networks are distinguished based on their geographical span. Because token ring networks are few and far between nowadays, it is far more likely that you will find yourself working with ethernet hubs and switches. Units which are the last receiver or generate data are called hosts, end systems or data terminal equipment. Networking components and devices introduction pearson. Instead of giving a one sentence definition, let us try a more descriptive. To connect lans, connecting devices are needed and various connecting devices are such as bridge, switch, router, hub, repeater. Introduction to wireless networks when you invent a new network. In the network diagrammed above, all links are pointtopoint, and so each interface corresponds to the unique immediate neighbor reached by that interface. Networking devices michigan technological university.
You are much less likely to find a network device that does the functional equivalent of translating from english to. Computer networking is the practice of interfacing two or more computing devices with each other for the purpose of sharing data. Basically, network consists of hardware component such as computer, hubs, switches, routers and other devices which form the network infrastructure. A wap is often used to connect to a wired network, thereby acting as a link between wired and wireless portions of the network. Computer networking and management lesson 1 computer. Introduction lans do not normally operate in isolation but they are connected to one another or to the internet. Identify the purpose, features, and functions of the following network components. Hubs connect multiple computer networking devices together. View dell networking products and shop all of our network hardware and devices. A computer network consists of two or more computing devices that are connected in order to share the components of your network. Repeater a repeater operates at the physical layer. Describe the functionality of lan, man, and wan networks. Bus wide area network connects significant portion of a country hundreds of kilometers.
Interconnecting cisco networking devices part 1 100101. Most of these computing devices are traditional desktop pcs, unix based. Networking hardware, also known as network equipment or computer networking devices, are electronic devices which are required for communication and interaction between devices on a computer network. An internetworking device is a widelyused term for any hardware within networks that connect different network resources. Learn network devices with free interactive flashcards. The last msau in the ring is then connected to the first to complete the ring. All networking aruba software network security routers switches wireless devices shop all networking. Specifically, they mediate data transmission in a computer network. Before you look at each component, however, it is helpful to think about some examples of networks. So far this book has examined topologies, media access methods, networking standards, and cable types and connectors. Wap provides network capabilities to wireless network devices. Hewlett packard enterprise unifies wired and wireless networking to create superior, high performance campus, branch and data center solutions. A computer network consists of a collection of computers, printers and other equipment that is connected together so that they can communicate with each other.
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